Well, thats a tough one. I'm 40 and maintain only a 5 inch penis, at your age I measured it at 5.5 inches so so I Imagine yours will shrink slightly with age too. You are still growing, though, and a good diet with plenty of activity may improve your odds slightly but make no mistake genetics will ultimatly determine the size of your penis. I know the web pokes fun at guys like us unfortunatly there is nothing that can be done without surgery or other extreme measure. I say don't worry about it, find a girl that apperciates you for who you are. until then enjoy your body regardless of your size. I masturbated several times a day untill I was married, I shot big loads everytime long distances and didn't regret how my body made me feel upon orgasm just because I had a small penis. You can't realistically change it, so enjoy it!