Pack eating in poverty has been part of most, all peoples history.
An inherent component in our genetic memories.
G.B. Shaw said, the cells never forget!
The ravenous race to appease appetites is the primary cause of obesity.
" Hunger comes with eating, thirst goes with drinking ".
There, in that statement, lieth the problem and solution.
If one out eats ones hunger, ie, by competing against an allocated time for consumption, then, you have succeeded in beating fortification with an excess, of which, is both unnecessary and uncomfortable.
At that point, we need to consider what Shaw observed and take note, that all addictions are accumulative.
I know, I am an alcoholic.
So, how does one take back control of ones teenage weight?
First, we need to accept that food depravation in a mild sense does not cause harm, hunger is the - removed from the +.
Less in intake and less in the speed in which one consumes.
I am not going to write you a diet sheet, this is futile, succeeding is achievable, "providing" you never stop practicing.