Review the study guide prior to Day 1, have a general idea of every system before coming in. During indoc when you download your manuals begin memorizing every limitation in chapter 2 of the CFM, most of these aren’t listed on the study guide. This will give you a head start for systems and make it more of a review. Once you’re comfortable with this focus on your EPC’s, flows, callouts, and profiles. If you can have these committed to memory before your FPT you will be fine for sims. Good luck.