Checkride busts are huge now I got lucky getting in here. Before I came here there wasn't a day I didn't think about them and how I blew my career. Now.... it's the last thing on my mind. Study up on your basic knowledge and either get in the plane or a sim and do non stop instrument flying and you will be fine. In the sim approaches are flown at 140knots the reality is that's probably going to be the last time we fly them that slow. From what I've seen on observation flights they're all high speed. (180kts-210ish) So try playing flight sim in a King Air or something similar and fly at those speeds for practice. That's probably the best thing you can do to prepare. When you get here relax, rest well, and study. Try to take a break though every now and then and grab dinner with your classmates. You need to let your mind rest because it's so much information to absorb so quickly. You don't need any gouge to pass I'm not even sure if there is any, but the books you need to study are given to you so read em up and take notes.