It is possible to take a break from OT so that your child can have some down time. My OT gave us tons of activities to do for a home program during a break plus I found some additional activities in books and online...I didn't call it OT home program. Just, hey, let's do this fun thing together. And then when she is less fatigued pick back up with OT.

I wouldn't drop the social skills class IMO or the CBT if it is going well. Possibly move some of the play dates to the weekend?

...reading is pleasure, not just something teachers make you do in school.~B. Cleary