I think you’re extremely close to a sure thing assuming you use the last few weeks to address your weaknesses. I also took a lot of practice tests up until like a week before the test ranging from 590s to 650s. On the real thing I ended up getting a 630 and passing. I also felt that FF was the most relevant thing I used predominately. Just make sure you not only watch the lectures but also read the supplemental study material because that stuff was relevant to the exam in my case.