"As long as you have wonderful thoughts, that’s all you need." That’s the advice Happy Days star Henry Winkler, who is dyslexic, says he would tell his younger self about struggling with a learning disorder. "I did pretty well in my life. Without being able to spell and do math or read very well." He ends his video with a powerful message: "Here it is: you’re powerful and never forget it. That’s what I would say to My Younger Self. It’s OK, relax because you are going to be an incredible adult."Here are a few quotes from other celebrities who are taking part in the 2018 #MyYoungerSelf campaign:"There is no part of you that you should be ashamed of. You are exactly who you’re supposed to be. And the only person qualified to even be you…is you." – comedian Sarah Silverman, depression"If I could say one thing to my younger self it would be, have fun with it. You know you’re not stupid. So don’t ever believe for a second that you are." –Dawson’s Creek‘s James Van Der Beek, dyslexia"In school, I felt like a loser every day, but you know what feeling like a loser did for me. I have great empathy. I can never look down at anyone who’s struggling with anything, and that’s given me great leadership and that’s helped to make me rich." – Shark Tank‘s Barbara Corcoran, dyslexia"You learn the tools to deal with it, whether it’s breathing or learning or some kind of meditation, which I find helpful, or just learning what the root of it might be, just having some control over it and knowing that is really a completely normal thing." –musician Mark Ronson, panic disorderWatch Winkler’s video below and visit the Child Mind Institute for more information about children’s mental health.