Prep Test Advice

I have been studying for a few months now and have taken a few PTs. I feel like I need to be preparing for these prep tests in the same way I would for the actual thing (i.e. good rest the night before, environment I take it in, time of day, etc...). I was curious if anyone has any tips or advice how to simulate taking a preptest to make it as similar to the real thing as possible. My goal is to make the actual test day feel like I have done it before and go in there and handle business.