Severe Ankle Pain... What do I do?

I was in gym cl almost a week ago and collided with someone and my ankle twisted. I'm not sure exactly which direction it rolled/twisted but i'm in a lot of pain mostly located on the lateral side of my ankle. I am now able to move my ankle in all sorts of new ways. I went to see a doctor and she was a complete idiot and seemed to think the pain was completely unrelated to the collision, although it started hurting the very same instant as the collision. I went to physio and she seems to think its a couple stretched ligaments and a minor high ankle sprain. I have been walking on it but it becomes increasingly worse and the pain is becoming unbearable. I have had Grade 1 sprains in the past and this is much worse! Should I get a second opinion or leave it. I don't know how else I will get around other than walking if i don't have anything to use. I take anti-inflammatories for arthritis but it has still swelled, although not tremendously but enough to notice by looking at it. it is slightly bruised and i got x-rays and nothing is broken. I'm a soccer player with tryouts starting in the next few days. I also have ultimate Frisbee tryouts beginning in a week. I am currently playing rugby although I stopped since I hurt my ankle but we have some important games coming up, I want the fastest recovery possible. If you have any ideas of what I should do PLEASE let me know. I'm in a lot of pain and need relief fast, it seems like walking is only making it worse. For school, all of my cles are perfectly planned to be on opposite floors and clrooms of the school.