Audit Struggles

Hi All, New poster, long time reader. I received my first passing CPA score in REG last August with a 77 the first time I took it. Since that time, I've passed BEC (82 on the second try) and FAR (76 on the first try). However, I have now taken--and failed--AUD three times (63, 69, 73). I am using Becker. I always went back and did tons of MC's and Simulations before each time I've taken AUD. While I've improved each time, I am starting to freak out being as I think I am going to lose my REG credit if I don't pass AUD in 4Q18. Like a lot of you, I am working full time, which makes study time at a premium. I guess the point of this post is to ask... What should I do to finally get over the hump? Keep using Becker questions to re-review? Use Ninja? Get a tutor? Any and all suggestions/advice are welcome. Thank you and best of luck to everyone! Tanner