Idk what I am

So I kinda feel like going by he/they instead of he/him (amab, 16 btw) because I don't really feel like just a guy but idk how to tell people (my family isn't really that supportive but it's not like they'd kick me out or anything just not really respect it) (my boyfriend would be fine with it tho he's trans and I love him) but idk if I'm just attention seeking and I'm kinda scared to tell anyone. Idk if I'm gender fluid but I'm def not completely cis. Thanks y'all