All I think about when I get horny is being a sissy or men

I have a gf but whenever I get horny all I think about is being a sub for guys, I’ve resorted to being a slut on snap but I have been so gory I’ve been and been sucked off by a guy. Every time I pass the public toilets which is a hookup spot all I want to do is go in and be used. Idk what to do now. Do I follow the urges or what?