Honestly if you really want t do it go for it. Based on your credentials if your half time is legit based on that training sub 2:25 is realistic. It will be a lot of work. OT qualifier in the next round if it stays at 2:19 is unlikely but it really is not out of the realm f possibility. If you really go for it, 100 + a week, and your body responds well to that you could be able t make it. Odds are against OT for sure but sub 2:25 seems very possible.
You probably wont have the chance to go down this road 5 years from now, so if you want it, now is the time.