Do the one thing you think you cannot do. Fail at it. Try again. Do better the second time. The only people who never tumble are those who never mount the high wire. This is your moment. Own it.
Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.
The heights by great men reached and kept were not attained by sudden flight, but they, while their companions slept, were toiling upward in the night.
To have faith is to trust yourself to the water. When you swim you don't grab hold of the water, because if you do you will sink and drown. Instead you relax, and float.
Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.