Since you have an idea of your weak spots, I'd suggest focused practice rather than content review. Lots of studies show that forcing yourself to recall information helps with retention better than reviewing (reading and re-reading and re-re-reading...) material. Khan Academy has lots of practice passages and standalone questions that were developed with guidance from the AAMC, and you can focus on subjects that are giving you trouble.
Then you can always take FL along the way to track progress/help direct your focused practice.