There's no regret. I have no issues with getting myself into shape and I certainly don't feel old in anyway. My concern is with the "before your 28th birthday" requirement that the Air Force has to enter BMT. If I was younger (and learned about PJ's sooner), I'd have a longer window to secure a PJ contract. It seems as though 9 months may be cutting it close according to Kheenbish and the amount of time he waited for a SOWT contract. Honestly, I can't imagine it taking more than 10 weeks to pass the PAST. But I'm shooting for 6 anyway because I am in fact determined.
SOWT, all the jobs that really interest me in the Air Force require either the PAST or the DLAB(PJ, SERE instructor, SOWT, Airborne Crypto, etc.). I don't have nearly as strong of an interest in the other jobs, but I'm 45 credits into a Computer Science A.S., so, I do find the "high-tech" jobs interesting (but in my free time, I'd much rather be camping than using a computer). Now would I be happy with Fusion Analyst? Tough call, but if I can't secure a PJ contract, at least there's the chance I could cross-train(?) later on.
As far as what I find attractive about PJ... probably the standards answers. "That Others May Live" being number one. The brotherhood, the challenge, the amazing pipeline, the EMT training. Honestly, I could probably write a long time about why I want to be a PJ, but the post is getting long and my wife wants us to watch Dexter :die: