Thanks for sharing on the forum, I'm glad you feel comfortable doing so :)
I [19/F] have also been exploring my sexuality recently and how I feel comfortable identifying. My situation is a little different because I'm attracted to women but not sure if I am lesbian/bi/pan or something else, but maybe my experience could still be helpful.
Firstly I'll say it might take a while and you might not find the right words straight away, but that is totally okay! While I'm still figuring out where I feel comfortable and what fits me, I just use "queer" or tell people I'm "not straight" because those are things I feel sure of. Saying "I'm not sure" is also totally fine.
Secondly (kinda similar to the first part) it's okay to get it wrong. If you identify as one thing for a while but then find that you don't really connect with that anymore then that's okay. Gender and sexuality are tricky things and while some people can be sure from very early on, most people need a while to get through the mess of feelings. Sometimes a really close friendship and romantic attraction can feel really similar. Go easy on yourself while you figure things out.
You don't ever have to label it at all if you really don't want to. You can let yourself be attracted to whoever you're attracted to without labelling it if you feel more comfortable doing that. That's sort of where I am at the moment. But if you want a word for what you're feeling that's totally valid too. I had someone a bit older than me who I talked to a lot and it helped, so if you know any older queer people maybe have a chat to them.
As for questions to ask yourself that's kinda tricky because it's quite a personal thing but I can throw out some suggestions. Maybe you could try to picture yourself with a woman (in whatever sense of the word you feel comfortable) and see how you feel about it? Is the way you felt about the girls you mentioned similar to the way you feel about men you've been attracted to? If not, how is it different?
Hopefully there's something sort of useful in there. Just remember that it can be kind of a 'messy' process but that's totally fine and there are so many possibilities out there once you open yourself up to them. Feel free to come back and share again or ask more questions.
All the best