I'm a 17 year old guy. I feel really alone. All my friends are gradually drifting away, nobody wants to talk to me. I'm shy but do make an effort to talk to people. I'm athletic and the only times I felt really accepted was during sports but now I've become injured and am no longer able to play anything for months. I just feel so alone and don't understand why my friends are leaving me. I don't feel like I can talk about this to anyone.

Hey wassup?
We're almost at the same age :) and I think that's why you feel like that.I used to feel like you a few months ago... and used to think that my friends are not any help and they are my foes actually! I just taught that they were around me because they needed a tutor or a good massage some times or even a sympathetic ear and a warm voice to help them calm down and felt like when they got every thing they needed,want to leave me behind... I'm not a emotional person or even a social type at all... that's why I've never wanted to make a bosom pal since 5 months ago.I just woke up in the morning and felt that I got no reason to get up... I was really lonely. Found that it was my fault.. yeah! I used to behave really bad toward everyone... right at the moment I shouldn't! Right at the moment that they wanted to be my friends and stay forever... I have a specific personality and it can't be imagined even! Just a minority of people like this type... I can not behave like a teenager and always want to be my friend's momma! nothing can enter my heart before it pass my brain analysis... I expected everyone to be just mine!it was a childish behavior actually... They always left me and I couldn't get the reason but once I heard everything... I felt 'em... and I tried to make something good out of them! :)now I have the best buddies ever... :)
Finally,something is wrong with you boy.sorry,but I guess you can't keep your friends happy or you can't make good friends.I know that it ain't your fault... every one is a little bit jealous... If every thing is OK with you, be sure that it's their jealousy of your athletic skills getting between.it was my experiences.You need to ask a grown family member who's your confident :)
Anyway,I hope you become OK soon and play again,man.

Your friends are probably doing this because you are not interacting with them. I suggest you hang out with them often. :-) And if you tell someone about your problems, it would make you feel better... would it not?