Girl i've been on hormones for over 5 years, and i will honestly tell you that it will be hard- but it will be SO much fun as well. But you have the canvas, you are young, you are pretty, you have your whole life (and your 20s) ahead of you so dont let some misconceptions get you down. Live life as a girl now, go do girly things, dance around your bedroom in your panties, dress like a victoria's secret model, sing in the shower at the top of your lungs, wear the sexiest skankiest cocktail dress, do it and do it proud.
If you sit around brooding and worry about the small stuff you will forget your reasons for transitioning in the first place, which is...to have fun and be YOURSELF. once you are comfortable in your own skin, everyone else will follow. Trust me you will do well...dont underestimate the hormones + age girl. Youve got it made!!!