You are my inspiration. You are so young, and are getting a handle on this.
I was bulimic for about 9 years, but it took me a lot longer that that to get over my food obsessions.
Try to just relax. There are no bad foods, just bad habits. So for me, If I feel like candy or sweets or whatever. I have it, but in moderation. I eat when I'm hungry, and stop when I'm full. And that works for me. But, it took me a long to that point.
Don't give up, or be hard on yourself.
I wish you all the best.
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Sleep is like the unicorn - it is rumored to exist, but I doubt I will see any.