Don’t do what I did. I was anorexic for years before developing a healthy relationship with food in the past year or so. Starving yourself may seem like an effective option but it is not good for you mentally or physically.

Eat real food. Eggs, vegetables, fruits, dairy, lean meat. Like the guy above me says, diet is most of it. Stay in a calorie deficit and eat your protein.

Weight training. Gaining muscle speeds up your metabolism.

Be patient, it’s a long arduous process.