You are not your mistakes. Just because you have done something stupid does not make you stupid.
It is the job of conscious rational thought to decide what you want, select the goals you wish to achieve-and concentrate upon these rather than upon what you do not want. To spend time and effort concentrating upon what you do not want is not rational.
Your nervous system can't tell real failure from imagined failure.
Man maintains his balance, poise, and sense of security only as he is moving forward.
Admit your mistakes but don't cry over them. Correct them and go forward.
Forgiveness is a scalpel that removes emotional scars.