I need help figuring something out.

I, 14m, am talking to a girl i plan to ask out, 13f. We’ll call her Ava. Now i know yall thinking oh this a lil kiddy relationship it’s not gonna last. Well you can have your opinion but anyways, my issue is, i turn 15 in october. and she turns 14 next august. my problem with it is that she is a year and like 7 months younger than me and some will say oh that’s not bad but reason i say it could be is because the maturity between a almost 15 year old and a 13 year old are wayyyy different. i need your guys opinion on this.