"In the end we only regret the chances we didn't take." So be risky because you would rather look back and say I can't believe I did that instead of I can't believe I didn't do that. I do regret that amazing chance that I didn't take.
If you're not okay, that's okay. It will happen sometimes. But you have to tell yourself that things will be better tomorrow. Even if they're not better tomorrow, keep telling yourself they will be. Because eventually, tomorrow will be better.