"happiness is the joy you feel while striving for your potential" - It means when you're running a marathon and suffering you can still be happy. You're achieving something you previously couldn't- people who say "i'll be happy when.." are somehow never happy. They are in a hedonistic treadmill.- Living in the past is depression, living in the future is anxiety- "I'm not good enough" vs "I've failed before"- second one is a fact, first one is a story. Learn to see the story you are telling yourself. The truth is not as bad as the story you are telling yourself.