I read your previous post about your feelings for your best friend- as a queer person, something you have to learn about gender and sexuality is that there are no black and whites. Experimenting is a thing because you're supposed to fuck around to find out, so to speak. If you find yourself attracted to a woman in any way, and you identify as a woman, but still prefer men, that's okay. Being attracted to both to any degree is being bisexual. It's hard to picture yourself doing sexual acts with the same sex if you have no experience. Your best bet is to try it out when you get a chance and it feels right, and if it isn't for you, it isn't for you. It is perfectly normal to be heterosexual and biromantic if you feel the desire to be in a romantic relationship with another woman but don't feel comfortable having a sexual relationship with a woman, but it's worth waiting to explicitly define yourself as heterosexual biromantic until you know for sure that you're not down to have a sexual relationship with the same gender.

All that being said, there's no problem with identifying as bicurious. That can and should be the label you use until you have had time to experiment with the same sex and find out whether or not you are comfortable with them.

As someone who came out as Bisexual last May, I can somewhat relate to how you feel. I have been with both genders so what I say is, try it and see how you feel because once you do, you'll feel like a weight has been lifted off of your shoulders. I've also been struggling with trying to figure out if I'm actually a lesbian or just Bisexual as men can sometimes make me feel uncomfortable so if you ever need to talk then feel free to send me a message