I sprained my ankle a few days ago and its now purple, I can just about walk and hurt hurts so bad to get up and down stairs, its really swollen too, I have school so I can't rest it and the doctor refuses to give me crutches! I'm in so much pain please help! I'm only 13 and I have a few mock GCSE's! HELP!!

I had to Google GCSE's. You have a few mock General Certificates of Secondary Education?

Did the doctor take x-rays?