I had a similar experience with plateauing and regressing. I found doing reviews of the lessons to be the best - because I needed to realign my test taking with the theory and strategy presented!
There are a few things that I've been doing to balance out life and studying for the LSAT. I work around 50 hours a week, am taking care of a parent, am married, and am already a mid-level professional... not sure what your situation is, but in mineā¦