You're what your choice and decision makes you, you're your sun and moon, you're what matter.

You can and must live your life like you want because at the end no one else is gonna do it or live it for you.
You own it, and can do whatever you wish to.

Believe in yourself first. You're an amazing human being, yes with flaws and qualities. You ain't perfect for the society maybe, but you're for you or at least you try to everyday, and sometimes without knowing it. And you're loved. Loved by all those people who helps and believe in you to push forward. And maybe some of them choose to let you down but as long as you believe in yourself you don't need them. You have you and only you, to achieve what you want.