I know it will be hard to do but for the practice, if you find the deer, see if you can backtrack her to where you shot her. If it' s been raining forget it. If not, give it a try. There won' t be any bright red blood but after a few days you can still find brownish red blood.
Next time, make a good effort to find your arrow before taking off after the deer. Give the deer time to die. If your not sure where you hit the deer, give it 3 or 4 hours before tracking. When I was learning, I always spent as much time practicing tracking as I could. Even if the animal only went 40 or 50 yards, I would still go back over the path and find every bit of sign I could and would study the blood drops to try to determine direction and all that. Successfull tracking is just as important as bow practice. Good luck and don' t get discouraged.