I feel your pain. I just watched/listened the "Post Core Curriculum Strategies" webinar by Josh and it helped me identify a few changes I can make to break the plateau.
https://7sage.com/webinar/post-core-curriculum-study-strategies/
All of your questions (and more!) will be answered if you check out this wonderful webinar: https://7sage.com/webinar/post-core-curriculum-study-strategies/