Tips to lose fifty pounds in six months?

I'm looking for both healthy and unhealthy methods. I've got a lot of tricks up my sleeve but I'm sure others have some I've never heard of that might work for me :)
If you don't have anything helpful please don't comment. I know I have a problem and as soon as this 50 is gone, I'm getting help. I developed EDNOS several years ago. First I displayed anorexic tendencies, then it slowly transitioned to bulimic, and then to a starve-and-binge habit, causing me to gain all of the weight I lost and then some. I just want to be back to my original size before I get help, or I fear I'll never be small again.
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+1 y
Also, im starting at 194lbs and I'm 5'6
So I'll be going down to around 140, where I was before I developed an ED. Not an unhealthy weight at all.
Tips to lose fifty pounds in six months?
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