22 year old Female seeks a single or double room

I am a female aged 22 looking for a single or double room preferably in Acton/ sheperdsbush or Willsden. I am available to move from 03/01/2016 and have a budget of max. 800 pound per month but would be glad to get something less expensive. I'm sociable, friendly, tidy and easy to live with. I will be in london from january to the end of August to do my master thesis in Cancer research.