Hey,
Honestly my questionning journey has been really long and is not even finished but I'll tell you how it went ^^
So first when I was around twelve I started wondering if I liked girls (yes I did) and for yeaaars I kept going "no, I'm just having ideas" and "wait I think I actually AM bi" and on and on...
I finally started accepting myself as bi when I was 14-15 yo and stopped doubting, cause it was obvious I was bi.
Then when I was 15 or something I started questioning my gender, and came to this dumbass conclusion : "Okay, so basically I'm just a girl who wants to be a guy, it doesn't mean I'm trans though !" And again, I was sooo wrong, and what made me stop being I denial was meeting other lgbt friends in my new school (at 15-16), including a transgender guy. It's this year where my questioning went way faster, and after like 6 months I came to the conclusion that I was trans, more specifically an agender transmasc. I did went through tons of labels before this conclusion (genderfluid, boyflux, just a trans boy...) before finding the identity that'd fit me the best.
Then I discovered I was in the ace spectrum when my ex boyfriend tried to go further with me and I didn't like it (he's a good guy and didn't force me on anything btw).
And right now, I'm questioning being on the aro spectrum after leaving the said ex boyfriend a few months ago... TvT
Also I found out after a while that the term pan was better than bi for me. I'm requestionning being pan now though, because of my big preference for boys... It really never ends lol (joking xD)
Questioning is hard, but it'll definitely come to a great conclusion at some point ^^
If anybody questioning here should remember anything important, It'd be : listen to yourself, document yourself on lgbt identities (they are sooooo many), and surround yourself with accepting people if you can, it's definitely what helped me personally!! Also, if you don't want to have labels it's also perfectly fine, and it's also fine not to know perfectly who you are ! Anyway, sorry for the long rent, have a good day !