I did it!!!

And I met both my goals: not being last, and finishing in under 2 hours. It was drizzling, but not raining enough to be too dangerous and it was actually really comfortable for the run (I had long pants and a long sleeved shirt).
My total time was 1:49:05, here's the breakdown:
swim: 15:07
T1: 5:29
bike: 45:42
T2: 1:28
run: 41:18
Overall that placed me 565/573.
It turned out that the swim was the hardest part. They divided us up into waves and had one person enter the pool every 5 seconds. We were ordered based on our estimated swim time, but somehow it dissolved into a mass of people in the pool all trying to swim over each other's heads. Luckily I got to get in the pool for a warmup before the actual swim, because the pool I trained in is 3-5 ft deep, and the one the tri was in is 14 feet deep at the deep end. I didn't expect that to freak me out as much as it did.
In any case I started out swimming freestyle like I'd planned but ended up reverting to breaststroke after about 1 1/2 lengths of the pool. When I tried to do freestyle, there were so many people splashing around that when I tried to take a breath I got water splashed into my mouth. Since I was near the back of the pack after the first couple lengths there was enough room for breaststroke and it was easier to breathe. I saw a couple people doing backstroke, and my mom said she saw one guy doing backstroke with a mirror mounted to his goggles so he could see where he was going!
In any case I had planned on about 15 minutes for the swim, so even though it seemed like forever, when I looked at my watch after getting out of the pool I felt better because I was right on time. I must have swam faster than I thought because I ended up resting on the ends of the pool between lengths, which I hadn't planned on, but still ended up at 15 minutes.
The T1 transition wasn't bad. Everyone ended up keeping all their stuff in plastic bags instead of laying it out so that it wouldn't get soaked from the rain, so that made it a little harder to get things out in the right order. I had a moment of panic when I accidentally ran to the wrong row of bikes and couldn't find mine, but then I remembered where it was. It was kind of hectic because the elite people, who had gotten in the pool half an hour before me, were already coming back from their runs, and other people were coming back from the biking, while those of us who were last out of the pool were still trying to find our bikes and get dressed. I felt better when I overheard a couple at the next bike rack over who had also just gotten out of the pool.
The bike course was a little hilly but I was surprised at how easy it felt. I was also surprised at how fast I went -- I finished about 10 minutes faster than I expected. Partially I bet that's because when I was out on training rides I had to stop at stop signs and lights for cars to go by, but they had stopped traffic for us for the race. I managed to pass a few people on the bike so I felt better about my slow swim time. I had one minor issue when I hit a bump going around a turn and suddenly heard this really loud noise coming from my bike. Luckily one of the volunteers saw it and told me that it was my saddlebag hitting the wheel. So I did have to stop for a second to tighten the strap on the bag, but that was my only stop along the route. The fuel belt I'd bought was actually handy -- I was able to drink some gatorade and eat half a clif bar keeping one hand on the handlebars the whole time.
The T2 transition was pretty easy since I all I had to do was drop off my bike and take off my helmet. I was annoyed when I got to the rack though because while the space for my bike was still there, someone had left their duffel bag sitting in the middle of it. So sorry anonymous person, I kicked your bag out of the way!
I jogged out of the transition area only to find that the beginning of the run was up a really steep hill. My legs felt like lead weights and refused to run up the hill, so I walked up to the top, then started jogging. It took a little over a mile before my legs felt normal again. I could have run faster after that point probably but I decided just to keep the pace I was going. I did pick up the pace once I could see the finish line though!
My mom said I didn't look too tired at the end compared to some of the other people she saw coming through (she said a couple people looked like they were about to have a heart attack!). I definitely could have pushed harder. Next time I will!
The website that has our results from the race lets you sort by anything you want, so I can find out all sorts of interesting stuff. I ended up having only 8 people after me overall, but in each individual area there were more people than that behind me, they just made up for it somewhere else. I am still amazed that the fastest person finished the whole course in 47:10. Wow!