I'd rather find out I was wrong, then never have lived and found out I was right all along.
It's kinda like "it's better to have loved and lost, than never to have loved at all."
I'd rather take a chance and find out it wasn't good, it didn't work out, it was wrong. Than to have not tried, not lived, not experienced and gotten to the end and said "yup. That wasn't worth it, that didn't work, it wasn't worth what I put in."
Live life. Take chances. Make mistakes. At least you're living.
The key is...
Don't stay in your mistakes!
Mistakes can be invauluable! But only if you don't stick to them! If you stick to them, then they destroy you...
Freedom is found in this:
Forgive yourself, and move on!