What am I doing wrong?

Op you need to hit the weights because you are what is called skinny fat from the eating disorder and need to eat more than you need a day and build muscle. Once you build muscle you will look and feel better. try not to get obsessed though as you will slip back into your eating disorder and could die.

Forgot to add its nigh on impossible to diet out of skinny fat you need to sort any mental issues you have aswell or they will resurface as an exercise addiction or some other form of self harm.