I've seen a few versions of the following quote floating around the Internet. I'm paraphrasing here because most of those versions are poorly punctuated:
A bird sitting on a limb is never afraid of the limb breaking. Its trust is not in the limb, but rather in its own wings.
When you go out on a limb, it could break. But if you believe in your own abilities and passions, you'll be able to get from that unfortunate situation to a better one.
Take risks. Trust yourself.