There are times when something should be obvious but for whatever reason it escapes us, or at least me. For a long time I've been plagues with shooting high, anywhere from four to six inches. Oh I could shoot nice groups but always high. I tried raising my nocking point a wee bit. I tried staring at the spot until my eyes went crossed or hurt. I tried coming up from the bottom of the target. I tried to lower my bowarm but everything would fall apart. It drove me nuts at 3D shoots and cost me several misses on the local deer population.
Well, when I did the math, if I was shooting 4" high at 20 yards I would have to lower my bow arm about 1/8 inch to hit what I was looking at. That's when the light bulb started to glow, dimly but still a glow. What should have been obvious finally occurred to me. If I couldn't lower my bow arm, how about raising my anchor point. So I tried it. Magic!!! It was the last piece of the puzzle.
This worked for me. If you're having trouble shooting high it might work for you.
I did have trouble shooting high but I went to an arrow 2" longer and it seemed to solve the problem. Tighter gaps.
I suspect when I used to shoot high I dropped my anchor slighty too. It would happen when I started to tire out. When I would shoot high I'd skim the arrow off of the 3-d target's back to sail off into the woods.
Try to shoot with three fingers under the arrow. That's what my wife had to do to shoot where she was looking, she said.