high school botox

I have a real complex about my square jaw,
 but they say that the muscles move when you bite, which is very effective.
 I can see the muscles moving even with the naked eye;;
 I'm planning to get it during the winter break because I want to see more results,
 but I'm worried because I heard that if
 
the muscles that support it disappear,
 the fat above them will sag. I already have a lot of fat on my cheeks, and after correcting the correction, I got a little sagging.
 Will I lose a lot of weight later when I'm in my mid to late 20s?
 And it’s less than doing both, right?…