Meh, it must suck, huh? Well, I've had this experience a few times myself. When I was 12 I broke my Right Arm when I went Ice Skating, I can't remember how it happened, but it was probably a fall onto the Ice. I've also had it on my left too, that was when I was playing basketball, I was about to score, until this big guy got his hand and went under my elbow and he cracked my whole elbow. I was in pain for the whole day. So basically, I've had alot of Accidents in my past, and it sucks. But even sometimes if it's serious, you don't need to go to School! So yeah, sometimes it's a bad thing, but it's also a good thing too.
Hope you get better, though.