Don't be afraid of your own power.
Look at what you want to change, gather a few people who believe in it like you do, and start moving forward. It's important to remember that you don't always need a destination. Sometimes, you just have to make forward motion. And you absolutely can.
I went through a few phases of finding myself: I dabbled in musical theater, chess club, dance troupe, splatter-painting, school mascot (go Wildcats), babysitter, photojournalist, drill team girl, emo kid - and not one of them defined me, but every single one will always play a part in who I am.
I wouldn't do the music thing if it weren't for my brother, who's a producer. He understands me and helps my vision come to life.