Advise?

So I’ve only been with guys- I’m 17 and like I’ve only pictured myself marrying a guy or dating a guy- like I mean I’m turned on by guys and like I could not be more straight- but I’ve been thinking lately bc I have never had a good experience with any guy bc they all are really bad relationships and it’s weird for me to even say something like this but idk if I should start dating girls- idk I’m even grossed out to say that (no offense! I totally support the LGBQT community) but you know like I watch a porn video of girls doing it and I got really turned on more than I would with a guy and a girl- is this weird? Ugh I feel so embarrassed. Like it’s not the fact that I want to date a girl- maybe I just wanna sleep with one. Not to be a total due and user but does anyone get what I mean? Please comment on what I should do- maybe I should explore more but do I really wanna accept that to be apart of who I am? What are your thoughts?? Please I need some advice- some really good thoughts.