It sounds dramatic but the truth is that it takes guts to believe in yourself.
Think about it.
From Jesus Christ to Thomas Jefferson almost all the great and good stuff you and I believe in were once the radical thoughts of fringe characters who held fast to the conviction that what they believed in was right and refused to allow society to tell them otherwise.
They stood firm. They had courage.
If you decide to live a life where you will believe in yourself and your convictions know this; it takes time to acquire courage. You aren’t born with it. So if, in your journey you fail a couple of times, don’t worry about. Give yourself time.
Be happy, you're going to be just fine. The worst thing almost never happens