I can't follow the arrow either. I don't try to follow my arrow. If you get fixated with this, you are going to be dropping your bow arm to look at the arrow in flight. Some people blink on the shot, which is what I do. It's involuntary.

Against what everyone else is saying, my opinion is to sight your bow in, know where the arrow will hit when a good shot is made. Then when a deer walks in put the pin where the arrow needs to be and fire. Know where its hitting and don't worry about where it is going. Make sense?

If you're a good shot like you say, then you'll have no problem. A lighted nock and bright fletching will help you determine where the arrow stuck after the shot provided it did not pass through the animal. Look for blood on the animal or the arrow fletching sticking out of it after the shot.