I'm taking BEC for the second time on Monday. I started off the same as you and when I took it the first time this past summer. I stopped studying after chapter 2 because I was getting crushed by MCQs. It was really frustrating. I ended up getting a super low score. Here's what I've been doing to study the second time around (using Becker):
Read and re-read the text as much as you can to drill down the concepts. Don't watch the lectures (unless you like them). I find that I just zone out and do the motions without paying attention. If you like the notes/ highlights just follow along the e-book when reading.
For the MCQ: The questions IMO really aren't that hard. Run through the MCQ once. Don't worry about your score. For each question you get wrong, spend the time to figure out why you got it wrong instead of moving on. Also before you move to the next question, do the problem over again with the answer in front of you. This helped me learn the concepts so much.
At this point I know what almost every answer is because I've done them so many times, but I still go through the motions to get to the right score. I haven't spent any time working on SIMs. I figure learning the concepts is much more important.
It's super frustrating at first, but now there isn't a section I'm worried about now (except chapter 4 – I can't stand reading about this IT BS, it's incredibly boring). Keep at it, you got this.
BEC - TBD
AUD - TBD
REG - TBD
FAR - 76 (10/19/2015)