Speaking from my experiences preparing for the August flex, I would recommend starting to redirect effort a bit towards practice tests, blind review, watching explanation videos when needed, and focusing on weaknesses. While theory is really good to know if you have the time, I would argue that building good habits are what ultimately makes your score better, so doing practice tests and learning from your mistakes will be the most efficient use of your time. In an ideal world you could do the full course and then practice, but when this isn't possible the best you can do is focus on what you think will matter the most.