these arent easy questions to answer, and in the end its highly personal. if you feel like you dont have much exposure to gay identities, then why not try and consume some gay media/history and see how it makes you feel, if the experiences you see in such stories resonate with you? if they do try and examine why that is, and think about how things might have changed if the genders were different. one thing to keep in mind is that you dont need to feel compelled to date women to be bisexual, you could simply find yourself attracted to them.