Get ready for a really busy time. But for now, enjoy the break and don't worry too much about pre study.
Do one thing at a time. Don't worry about airspace and standard calls while in ground school. Learn the systems then. Cross each hurdle one at a time. Your training may be great, but it may be crap. Don't take the chance by thinking "the training program will get me through". Do additional study on teh topic at hand to make sure you really do have a good understanding. If you get behind the training curve, it's hard to get back ahead.
If it's a dash8 your going too, enjoy it, it's a fabulous machine.