Is it an option to pick a particular thing to work on with temp T, like a phobia or something random, and not let the two sets of work overlap more than they need to? You really only have to turn up to the temp sessions and go through the motions. You could still continue to do the work of therapy with proper T and leave temp T out of it. I'm sure you'll find a way through it that makes it as painless as possible for you.