hi girl, fellow woman here. please don't do this, you sound really in a bad place and has someone who has seen EDs in friends and in my line of work I know how bad it is.
You are going down a path that could change your life forever, and not for the good. You make this one decision and you will spend the next 10 years trying to recover. "starvemaxxing" will genuinely get you nowhere.
I'm genuinely willing to talk with you about it, and perhaps help you lose bodyfat and get healthier without sacrificing your mental.
Goodluck, and you can message me any time if you need it :]