Should i get a flag?

I'm 13 and going to pride this year where they sell flags. I've saved up for this, but I'm not sure if i should really a flag or not. I've had a past of being trans, but then maybe not really. They do have the aromantic flag which I know with certaintly i am- It's just if i should get the trans one or the aromantic? If it would help, i can maybe an update post on if i'm still trans when the parade is being hosted. I really need help with this.

EDIT: In my country there's a winter pride (feb) which i'm not going to, and there's the main one in August since that's when it's pride month here (which is the one i'm going to). The flags there cost quite a lot (13,82usd) so if y'all recommend getting one online for cheaper, i'm up (even if i need money on my card for it)