Some people just can't be pleased. I say, that's their problem, not yours. This guy seems like the type that appreciates nothing and complains about everything. If you base your happiness on him and his actions, you'll never be happy. Don't leave your happiness in his hands.
If you want to be the best, then aim high, conquer your fear, be bold. In the words of Theodore Roosevelt: "It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly,…"
