Is this normal

Allyson

Okay, I'm 17 and I don't understand why I don't masturbate when I'm horny. I'm paranoid my family will walk in even if I lock my door. If I do masturbate I don't know why but I have to pay a towel down. I just don't like getting my bed dirty. Essently I just don't do it. I'll be horny and masturbate or I'll be horny and not masturbate. I feel like I have a low sex drive or something.