I think I am pansexual

I think that I am pansexual but I'm not really sure. I've never understood why gender matters so much to people and have also thought "I would date that girl". But I also feel that I am more sexually attracted to guys (there's some damn fine girls don't get me wrong) so I'm not sure. I'm also scared. I feel like people would hate me, both straight and LGBT+. I've heard some people say that it isn't real or some LGBT+ think that we're up ourselves because we say we like all genders. I'm not sure if any of you are reading this, or have gotten this far because I know it's long, but I just want some support from at least one person. I am not sure of who I am ( I know I'm not straight) and I am not ready to come out yet, even to people I know will accept it. I'm sorry I had to post this anonymously.