Chin up, Brina! Sometimes life gets so hectic and it's impossible to fit in all the training we need (or think we need).

I think 5 weeks is a good amount of time to train for your oly. You really only need to taper the few days before, so that still leaves you lots of time to work on each sport. If you weren't planning on placing high in your AG (or overall), then just do it for the fun/experience of it. That tri is amazing from what I've heard, and I think come race day you'll be pushed on by all the people and the excitement of the race.

I wouldn't give up on yourself so quickly. How about training the next 3 weeks and see where you're at. If 2 weeks out from the event you really FEEL physically that it's not possible, then do the sprint instead. My last oly I wasn't in top form (I'm IM training and that means pacing myself slower, and most everyone there was moving much faster). I didn't care tho, and did it for the enjoyment of racing. I was one of the last 10 people to finish, but I got so many cheers.

I say to start your training today (or tomorrow) and see where you're at in 3 weeks. I know you can complete the distance (so what if you have to walk some/all of the run or not be as fast on the bike). Fact of the matter is- you're out there doing it and for that you should be very proud.

Good luck in your decision (sorry if I was a little preachy/rambly).
Hugs!