Tapering off before my first tri

I have my first tri on Sept 10. It somehow snook up on me even though I was paying attention to my training, etc. Now it's about one week away somehow. Anyways, I know this because I have been tapering off on my workouts, only doing half at slow speeds, but I am feeling drained. I went out the other day just to get a quick last minute jog in before the week ends and I get my rest days, but I couldn't make it past one mile I don't think. I have been running some pretty hilly roads, but I could handle them earlier. Do you think my 2 big bike rides and big run earlier this week drained me too much? I tried to get in some race steady paces just to see what I could do, and I know it will be even better than those times because I will be more excited to finish faster on race day. It just gets so boring training alone and I feel unmotivated to do anything other than normal paces. I didn't injure myself because I knew when I went too hard, etc. That is why I walked home after my one mile jog, just to be on the safe side. I trained almost all this year for my first triathlon. Well I usually get out anyways, but I have trained almost every day out there on the bike and swimming and more recently running. Last week I felt over confident I could do this thing and actually win it. But then I saw the times of the winner who won this event the past 3 years and I gave up on that. As long as I come not dead last and finish, I will be more than happy. As long as I have fun and finish I would be happy, even if I come in last. But I compared my speeds with other people's and I am just pretty much average I guess. I lack the knowledge and body type and age of the winner. He has near 5 minute miles running and a 100 mile swim pace of a minute something. His bike for the 25 miles was just under an hour which is still pretty good considering I think this course has more than it's share of hills. He basically does the whole thing that I would consider myself sprinting. I know I can't sprint the entire distance, I just wanted to see where my endurance stands if I can do it. That's the main reason I did the Oly instead of the sprint, because I KNOW I could do the sprint. Anyways, wish me luck and calmness of nerves going into this. I am having bad thoughts about not finding my bike, going on wrong roads, etc. I am going to choose landmarks for sighting on swim and finding my bike. They said to do that. Any final advice would be great, this will probably be my last post before the tri. I am just feeling so drained these past couple days and I think it's because I went faster than my normal training pace. Hopefully my body will recover by next week if I take it easy.