Sorry to hear about your injury. From my personal experience in 2008, you can't rush recovery of a sprained ankle. I won't tell you how long mine was out of action, because you sound fed up enough. Rest, raising your ankle as often as you can, a cold pack to reduce swelling, and a compression support seemed to be the advice back then. I think once all swelling and healing of tissue takes place you can gently exercise -I used to swim to help mine, then gradually built up to walking. I'm not a medic so only going by what I remember, so there may be more modern advice that will help. Hopefully yours is not too bad.