You can’t grow in faith (or character or friendships) without learning to be humble. To forgive. To listen without agenda. To allow for the possibility you may be in the wrong.
Ask for help. God will give it.
If you feel like you can’t get your act together, that you’re less mature than some others your age, I have the recipe for being a grown up: Read, travel, help those in need.
READ everything you can get your hands on: books, audio books, newspapers, etc. Travel to places that are different than your experience. Keep a lookout for people (or animals, or groups or causes, etc) who are struggling. HELP those in need.
The thing about hiding is you’re always worried you’ll be see, caught, or found out. It takes a toll. I hope you never hide from who you are, or feel like you have to fake it to be liked. I will always accept you as you are, and I hope to raise you so you accept yourself (and others) as well.