[MissC]

An orchieoctomy (castration) obviously comes to mind as "what would work" You need to eliminate testosterone...

If your really serious thats what you will need to accomplish with drugs at first

Spironolactone and Estrogen in an effective dosage work very well together to feminize and shut down your testis... You can get them without a prescription

You will need "chemical castration" to avoid male puberty

This is your advice to a child?

WTF is wrong with you????

I really hope you're just letting your own fantasy run away with you, and that you're not some sicko predator or something, like the sicko predators on Reddit telling kids to go get illicit hormones behind their parents' backs. "Hey kid, ya want some estradiol? I got some in my van...."

At the very least, it's irresponsible in the extreme.