Advice? - not entirely pg sorryyy

So I’m a girl and attracted to both girls and guys, I’ve only ever had sexual contact with a guy. I’ve kissed girls too bht never taken it any further. I like girls but don’t think I could ever please them. Like I wouldn’t mind them doing stuff to me if that makes sense. I feel like I’m more romantically involved with girls more than sexually. But im still really attracted to them, I’ve had a crush on this girl for ages now! So would that make me Bi? In my opinion I think so but I’m not sure if I should be feeling like this.. I also had major feelings for a transgender guy a while back too. But the only issue is that my dad and my brother who’s very opinionated, both agree that it’s (in their eyes ) wrong to have feelings for the same sex let alone date. I feel like I’d disappoint them for even dating someone of the same sex. They both judge my friends who are part of the LGBTQ+ and my brother especially says he doesn’t support it and finds it repulsive... and it’s really making me so uncomfortable and angry and upset and I just need some advice :(