A pessimist sees only the dark side of the clouds, and mopes; a philosopher sees both sides, and shrugs; an optimist doesn't care. Momentum is wht it wants to gather.
Talk back to your internal critic. Train yourself to recognize and write downcritical thoughts as they go through your mind. Learn why these thoughts areuntrue and practice talking and writing back to them.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends upon the unreasonable man.