No you're still young and you're only human. If anything you're actually doing better than most people out there if only two guys have rejected you so far. It took me 10 years longer than you to get rejected by two women. Use your own standards, don't compare yourself to other people because you'll never win.
Soothsayer: You're story may not have such a happy beginning, but that doesn't make you who you are. It is the rest of your story, who you choose to be.
BEST LINE FROM KUNG FU PANDA 2 !!!!
I'd say the acting like you don't give a damn about anything is pretty pathetic. It's fairly common, but it's sad all the same.
As far as worrying about two failed relationships with guys- or just being rejected- almost everyone has been there. Not good to be comparing yourself to your friend. You have a long time ahead of you.