Please read this article for a deeper explanation. But in a word, it is not possible to build capacity and utilize it simultaneously. As you have figured out, you will need some recovery after a major utilization session, like a big climbing objective, and you will want to taper a bit before the next objective. As you are figuring out, this does not leave much time for training (AKA capacity building). If you have done a good job of building capacity in those first 22 weeks, you should be fine shifting gears to this more specific utilization period to make your training more event specific.
I hope that helps,
Scott