Don't be afraid to put anything on paper because the best art has some element of danger to it and if you hold back then people will kind of be able to tell that you're trying to be something you're not.
I used to download a lot of music, and I understand it in this economy, but personally I buy my music. It feels good to be able to support a band you like. Plus, it'd be really hypocritical if I were still doing that, since I really hope people are buying and experiencing my music.
Try to overcome your doubt. Believe you are beautiful. Look at yourself through someone else's green eyes. Believe someone out there will find you and kiss your skin until you can feel it blister with the heat. Believe in something bigger than your problems and you will be saved.