Belly fat I'm sick of it.

I have spent most of my life "overweight", I am 5foot 4 and weigh 215 lbs. I have been working out military style, martial arts style even did yoga and figure skating. I have not moved down or up in my weight scale and I constantly stay at a size 16 in pants and XL in shirts. I am 21 years old and I am in college. I feel so big and bulky compared to other girls and even other guys. But my biggest problem area is my stomach. And because when I was a teenager I wore corsets so I could fit into uniforms. I now have a weird three shaped stomach. Where it flaps over and I have to tuck it into my pants so I don't feel embarrassed. I am so sick of it. I have tried so many diets and workouts. I need help to fix this for my own mental health and for the health of the next jerk who calls me a rude name.