Generally questioning my sexuality

Hello, I’m fifteen years old(afab) and have been questioning my sexual and romantic orientation for about three years. I’ve considered a lot of labels for myself, including aroace, demi aroace, gay, and pan. I have realized that I kind of am attracted to women, and am trying to figure out whether I am attracted to men, or if it’s just compulsory heterosexuality. I’ve also figured out that I don’t really care about the gender of a person I might date, since I care more about who they might be as a person. I recently have been texting with a guy I met recently, which has made me start questioning again, after coming to terms that I could be gay. Because I am open to dating him maybe, but also I’m not sure if it’s just because I find the idea of a romantic relationship exciting or if it’s liking him, which could be difficult because we’ve just met and have only really talked over text other than the initial conversation in which he asked for my number. I feel most comfortable with saying I’m aroace, and understand that I don’t need to have romantic attraction so quickly, but I am also trying to just figure it out.

also, at what point is it necessary to tell a person who is interested in pursuing a relationship with me that I’m ace? I feel very little sexual attraction, especially towards men, and am uninterested in sex. I know that sex isn’t the biggest thing in a relationship, but I also don’t want to end up in a relationship for a long while and then end up breaking up because the other person wants sex and I don’t.

also, is it possible for an aroace person to date? That is the label I have been able to identify with the most consistently, and am comfortable with using it for myself. The question feels a bit silly though, but I’m also unsure of how much I should tell another person first.

also I am not out yet, but I’m pretty sure that some people in my family are sort of aware that I might not be 100% straight.