Remember to breathe.Quit looking at antlers and concentrate your vision on a fine "spot".Don't get too much tunnel vision.You need to be aware of other deer around and what they are doing at the time of your draw.
Now,very important,after release,concentrate fully on tracking the flight of the deer with your eyes and ears.Make mental notes of landmarks that will help you find where you saw him last.Remember,after you leave the blind or stand,you will be looking at everything from a different angle and everything will then look different.A few landmarks will help sort that out.
As important as the visual is listening intently for as long as possible.Did it sound like it continued in a straight line or did it change course? Did you here a crash?
It would be a good idea to back out after a hit and get some experienced help to track and show you some things about tracking.
It is very important to try to determine where the deer was hit and how much penetration you got.This will influence how much time you give him before following.Your powers of observation will help here too.
After the shot,stay deathly quiet.You don't want to alarm the deer and give it any additional adrenaline and this is the time you need to use your senses to gather any information that will help you find your deer.Leave the fist pumping to the idiots on TV.
Have a great time,stay as calm as you can and take lots of pictures,not just of the kill but your entire hunt-start to finish.Pictures of the country,in camp,fellow hunters etc..This is a very special time.you will enjoy looking back on it regardless of the outcome.Don't base success on whether you bring home a dead animal.It's the whole process,start to finish.It's why we do things the way we do.