Sexuality???confused bisexual???

How do I know for sure what my sexuality is? Ive has guy crushes before and I’ve had a crush on a girl once and I’m okay with being intimate with a girl, but I feel confused with guys. I thought I was straight but then I caught feelings for this girl then I was like maybe I’m gay? But then I’m attracted to male celebrities. It’s just that I don’t like getting intimate with men, just the thought makes me uncomfortable. I feel more comfortable being with a girl. But what does that mean?