Masturbation teen issues GUYS HELP PLZ?

I am a guy that is a teen and I was wondering if masturbating face down with your hands rubbing your penis is a bad way to masturbate. I found out that it’s called prone masturbation (but I use my hands and don’t thrust myself against my bed) I am kind of nervous being in the 13/15 age range that I might not be able to have sex with a girl later on. PLZ HELP. i (found my info on healthystrokes.com) IS PRONE MASTRUBATION REAL????