My Never-ending Battle With Trichotillomania.

I started pulling my hair around age 12, I wasn't even fully aware of what was going on. I would lay in bed at night with a book and just tug and tug and about two weeks later I noticed a bald spot, right in the middle of my head. Eventually, my mom noticed... I was too embarrassed to tell her what was actually going on so I told her my hair was just falling out. She took me to the dermatologist who prescribed me some cream. I decided to stop and my hair grew back. Two years later I started doing it again.. This time it was more vigorous pulling. I'd try and "alternate" the spots so I'd be able to somehow cover those bald spots. I'm now 21 and still battling with it hard. About a month ago I broke up with my boyfriend of two year and it put tremendous stress on me. I now have a HUGE bald spot right in the middle of my head. I've been able to cover it up until now with different hairstyles but I don't think that there is anyway for me to cover this one. If anyone has any advice on how to stop and how to make hair grow a little bit faster I'd be happy to hear it. :)