Helppp

(I was debating on whether this was the right place to post this so please correct me if it's not!) I'm turning 19 this year and I've never been intimate with anyone in my life. Never had a first kiss or anything, not even in the 3rd grade when everyone thought they had found the love of their life. What brought me here though is that I think I'm bisexual but like... this is so confusing because I've never been with a guy or a girl. SO my question is do you guys know of any sources that would help with something like this? (Books, websites, idk any advice would be great!)