Mental Toughness Coaching

Let's join forces and empower you, your department or your team to become Mentally Tough.  I coach people how to dream plan and achieve their best ... especially  when it matters most.

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Reach heightened and sustained performance and potential in your career, personal wellness, relationships and more! I'll coach you using the world's most scientific and proven process for achieving transformation and joy. Discover new beliefs, habits and tools that help you join the world’s most successful people.

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Teens & Parents

Whether for academics or athletics, Mental Toughness is a tool that can help teens perform at their highest level possible, especially in high-pressure situations. My ZONED-IN framework helps teens accelerate progress and experience higher levels of confidence, satisfaction and joy.

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Sheryl works with businesses and organizations that want to drive High Performance. Her talks on Mental Toughness have inspired and enlightened audiences at Google Ventures, Bank of America, Microsoft, Pixar, Autodesk, VMware, Watermark, and Black Girls Code to name a few.

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Introducing Mental Toughness Academy™

I've been asked for YEARS to make my content available online because it transforms lives, so here it is! I've just launched Mental Toughness Academy, a comprehensive online course on how to become Mentally Tough so you can consistently achieve to the best of your ability. Launch offers and special bonuses available for a limited time.

"I was struggling with prioritization and organization, balancing the many demands of life and maintaining a focus that isn’t overcome with the many distractions I face on a daily basis. These have been three areas that have challenged me for a long time and I have spent time working to improve in these areas in the past with other coaches and through other programs. In working with Sheryl over the last three months, I can honestly say that I have felt dramatic improvement in each area and I am very grateful to her for her excellent coaching that has helped me become the best version of me!"

Michael Sollazo
Partner and Wealth Management Counsel, Capital Planning Advisors

"I contacted Sheryl Kline when I was feeling lack of focus and sense of achievement with my day to day life. Coincidentally, my daughter was taking her Mental Toughness online course as part of participating in the club volleyball team. While listening to some of the video lectures, it dawned on me that adults could use the skills she was teaching teens. Sheryl has helped me clarify priority for my life, and not just what is important to me, but WHY it is important to me. This has helped focus my energy to what matters most to me, and as a result I feel more in control. I have also regained the sense of calm even when I am overwhelmed with the amount of juggling I deal with personally and professionally. I highly recommend Sheryl and her Mental Toughness program – if you are looking to improve the outlook for your life by feeling productive and purposeful, this program will help you get there."

Sr.-Level Project Manager
Data Security Company, Mountain View, CA

"I invited Sheryl to be a guest panelist for our Female Start-Up Founder Speaker Series. Our topic was 'Mental Toughness for Women in High-Tech Start-Ups'. Sheryl's content was well-thought out, innovative and impactful. Sheryl connected easily with our audience and provided clear actionable take-aways on how to be more Mentally Tough, especially in high pressure situations and also strategies to recover when setbacks occur. Sheryl delivered, and we'll definitely have her back."

Amy Bunszel
Sr. Vice President, Design and Creation Products at Autodesk

"If you're like me ... the kind of person that wants to be the best they can be, and wants to show up with confidence that you can excel at whatever it is that you're trying to do ... then I think this [Mental Toughness Academy] program is a worthwhile investment in your future."

Ken Steven
President, Growth-Trend Marketing Consultants

"I was just at a place where I was doing well, but I knew I was limiting myself. I couldn't quite get over what it was exactly that was holding me back. So, I had Sheryl really help me to get some huge breakthroughs … not just in my business, but in my life, and really understand those things, those little tiny habits and thoughts that we're consuming me, so I could get over that hump and get to that next level. I cannot recommend her enough for High Performance coaching. She was so helpful. Really opened my eyes to so many things… so many stories I've been telling myself that just simply weren't true. It was a really great experience to help me get those breakthroughs… not just in my business, but in my life and help me get to that next level."

Erin Smith
CEO, The Starter’s Club & The Entrepreneur Summit

"Mental Toughness and High Performance Coaching with Sheryl has helped me personally and professionally. I now have greater clarity on what's important to me as well as the tools to plan and achieve my best. I did not realize what I was missing out on all these years to help me reach my full potential. High Performance Coaching is a vital piece to my success at work and at home. I highly recommend Sheryl and this program to help you be your best, and most importantly, to find your joy and balance."

COO and Managing Principal
San Francisco Bay Area Insurance Agency

"Sheryl was a panelist for a recent event in our Female Founder Happy Hour Series that we hosted with Autodesk. The topic was ‘Building Mental Toughness’ and Sheryl's content was practical and engaging. Attendees were engaged and left with clear takeaways on how to be more mentally tough, especially in high pressure situations. Sheryl was inspiring and effective, and we can't wait to work with her again!"

Kristen Brillantes
Design Producer, Google Ventures

"I found this ['Mental Toughness in the Workplace: How to Build an Influential Mindset'] session so personally helpful and especially your presence. You did a great job connecting with the audience and the specific challenges."

Aida Rivas
Senior Program Manager, VMware

Take the FREE "7-Day Mental Toughness Challenge"

For 7 days, just a few minutes each day, you'll be challenged to learn and implement some of the core Mental Toughness tips, tools and habits of world-class performers.


It's going to be 7 days of simple Mental Toughness challenges you can do to make progress. Believe me ... it's going to move the needle for you!

Get Started with Day 1 >> DISMISS MESSAGE

It's going to be 7 days of simple Mental Toughness challenges you can do to make progress. Believe me ... it's going to move the needle for you!

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People I Coach Find Their Joy

My Story

I'm a Mental Toughness and Certified High Performance Coach™, published author, speaker and mother to three kids who are high school and college Division 1 student-athletes. I earned a Master’s degree from the University of Southern California in Applied Sports Psychology where I researched and worked with many different sports teams and individuals. I'm also a member in good standing with the Association for Applied Sport Psychology.

I've worked with recreational to world-class athletes across many different sports, and I've delivered my content in corporate settings such as Google Ventures, Bank of America, Autodesk, Pixar, VMware and Microsoft to name a few.

Whether for athletics, academics or in corporate settings, I'm passionate about teaching adults, corporate groups and teens how to be sustainable high performers so they can dream, plan and achieve their best.


Contact Us

Find out if Mental Toughness coaching is right for you, your department or your team.

Book a time to speak with Sheryl via phone, Skype, or in-person.


The Zone Lab, LLC
3527 Mt. Diablo Blvd. #216
Lafayette, CA 94549
[email protected]
(925) 257-4257


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