DawnParr: Read. I know it sounds boring, and much less fun than doing something practical, but knowledge is key. If you have your textbook already, read that. If not, brush up on your high-school physics (pressures, gases, and fluids) and biology (mammalian physiology - cardiovascular system (heart, lungs, blood vessels), and a quick refresher of the cellular stuff, because ultimately our goal is to keep those little guys alive). And if you can go to the library and get your hands on a basic anatomy textbook, its helpful to have a basic grasp on anatomy. You don't need to know about each indiviudal muscle and its innervations, but if you know where everything is, you have a better idea of what organs/systems are affected by different injuries.
Finally, on a more physical note, hit the gym a bit, and make sure you're in decent fitness. There's a lot of lifting in your newly chosen career, and you're going to want to strengthen your core muscles to prevent injury down the road.
Good luck!!
