What's the fastest way to loose weight?

About four years ago, I used to be bulimic and anerexic. I was like this for about three years. I started in about the sixth grade, and then I stopped in the beginning of my freshman year. And through that I got down to about 142. Now I know that sounds like a lot but I had lost a lot of weight since I had started. Since I stopped I've gained about 50 pounds since 9th grade and I'm a senior in high school now and I'm 5'1. I stopped my bad habits, but I do still have issues with my body. And I want to loose it all and be back to my old size that I was in middle school, but I want to do it the right way. I still get those thoughts in my head but I have to fight them. It didn't really bother me a few months back but then my grandmother pointed out to me how much weight I had gained (she doesn't know about the problems I had) and it's got me really self conscious. So self consious I don't even feel confortable being me anymore. Is there any other way I can loose weight fast?
What's the fastest way to loose weight?
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