I have a couple of suggestions. The first would be to switch out one of your swims on either wed or fri of week 2 for another rest day. I also prefer to have the day 2 days out from the race off, then do a really light brick, 20 min ride and 10 min run the day before the race. I also encourage clients to get into the water at the race course the day before if possible, even if all you do is splash around for 10 min.
This is also a great workout to throw in this week or next:
Set up trans zone, put your cap and goggles on, run to transition, get on bike, ride for 10 min, fast trans to run and run for 5. Repeat about 3 times. This gets you used to your transitions, allows you to tweak you set up and also helps with neuromuscular training for that inevitable bike to run switch that is so difficult for beginners.
Hope that helps.
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