Did I sprain my ankle or something worse/less?

It's November 20th, 2016 and on the beautiful cold day I was running and stepped in a ditch and hurt my ankle. I've been crying so much and the pain barely bearable. I asked to go to the doctor considering I'm only 16years old I have to wait till I'm 17 to go alone and sign it myself. The way I feel was tragic, I slid across the yard and my vision was blurry but it was strange because I felt every twist and turn my left ankle took. My left ankle, on the right (inside) hurts if I push or bend it to the left. Though my whole ankle hurts when I walk, gently put it on the floor and roll it and stretch it. I've tried ice and heating pad. Nothing is working and the pain is pretty much horrible. It's swollen a and bruised a bit but it looks fine but hurts like hell. What should I do? I have school tomorrow and if it hurts when I wake up in the morning should I go to the doctor a.k.a emergency room????? Please and thank you.