Ethan,
Keep trying!!! That's good that you have a band and are writing music.
I bet a long, long time ago, alot of people told Stevie and Lindsey that they didn't have a chance either. Don't let other people stop you from doing what you love
Like Johnny Stew mentioned above, you will find your own voice and write music from your own experiences as you get older. You are very young and have alot of life to live yet. Future songs will reflect that.