Well you only get one shot at life. You're on the right side of 23 so you just need to decide how much you want it.
It is close mind, similar situation to me. Between university changing points per module and loosing my coursework it took me longer than expected to graduate, add to that fact I was told I was too tall to fly a Tornado when I was on summer camp with the ATC ... It all put a dampener on getting in.
I graduated at 23y 6m
