Every student I have helped in your situation has a similar theme. This may not be you but just what I noticed: they go through the motions without gaining and retaining an appropriate level of understanding. It may be because you still haven't figured out to study efficiently or many other reasons.
All these sources should leave you prepared. If they aren't, throwing more study tools on top won't help either.
Pick a single source like Rapid Review path. Cover it chapter by chapter. Don't just skim. Rewrite each page in an outline format or a flow chart or in some method that requires you to recall the information. Try to consolidate the information and pick out what you think is important. At the end of each chapter do questions from UWorld about that topic. This should take you no more than a month to two if uninterrupted study to finish the book.
Then go use a review aid like first aid in a similar manner. Add in a good review of OMM from savarese and comquest and call it a day.
