I messed up my foot doing a trick, and at first I thought it was a sprain, but also when I hurt myself it popped loud, now my foot doesn't look like the unhurt one, my friend says it looks like I have no arch, he said it yesterday, and the accident happened almost 2 weeks ago, now I feel like my body Is uneven or misaligned, also my knee and back hurts, and if I move that foot wrong it hurts, also I can't bend it like the other now 
how do I fix it back to normal??? I'm 20
how do I fix it back to normal??? I'm 20