Lets see 15. I was between 145-165 all the time, and I thought I was huge. I had a baby when I was 16 almost 17 and was 133 lbs. Still thought I was huge.
Why? I am thick waisted and I didn't excercise. Not excercising made me lazy and all the easier to pack on the pounds as life got more hectic. College was the worst, fat butt sitting around all the time studying and eating. Bad, bad food habits from there.
My advice to you is find the movement bug. The more I move the better I feel. Also start to learn to love yourself. The more self loathing you do and sitting around wishing you were a super model the more likely you are going to sit around some more. Choose to be a beautiful person inside and out and the want for food slides away.
I lost weight alot faster at 24 than I do at 30, and have been on more diets. Quit dieting start living.
Miss Chris