How do I become more butch?

Okay like the question says, how do i become more butch? Like okay i already wear men's clothes i mean all the way down to the boxers and deodorantt. But what am I supposet to do about my ? Because it don'tt feel right with a bra and idk if bandaging would harm my body any... What do I do? I really feel uncomfortable in a bra, if i go without one my back hurts. So does that mean i have to wear one or can i use an ace bandage?