Thank you everybody!! The reason for my surgery is that my knee caps dislocate (or something like that, I'm not sure about how to say it in english ) It's a really painfull thing that usually happens to me when I run or do any hard movement (hope it won't happen again with the surgery! )

And Beth, I think my school doesn't have an elevator! But I think I'll be fine in March (when classes start) and I'll be able to use the stairs....

Anyways, I'm really nervous today! I just want to think that tomorrow I'll be fine, and hopefully, I'll be home....