buck fever is target panic. Fear of missing. Pretty easy to figure out how to tackle it all from there on out.
Where did you learn that? When I was in my thirties I used to shoot five days a week. My best three shot group off hand at 100 was 1 1/4". 2" was a no brainer. There was never a fear of missing when I went hunting. Once while hunting I was walking along the railroad tracks heading home. A deer came out about 100 yards away. I was shaking so badly there was no chance of hitting it. I thought, "I'm walking too fast." The next day I was sneaking through the woods very slowly and saw a deer across a small clearing. I began to experience buck fever like the day before. I told myself, "Yesterday I wasn't walking too fast. I had buck fever." I was close enough to the clearing and sneaked closer so that I was only one vegetation away from the clearing so the deer wouldn't see me. I sat down and realized I was still shaking from excitement. I also noticed the reticle was jerking all over the deer's chest. When I realized that I fired killing the deer. Again there was no fear of missing
Edited to add:
I started doing the very thing that guy did. I would run the hundred yards to the target, staple the target, run back to the table, load the rifle, and fire three shots as quickly as I could. With this kind of practice I got where I could still hit a paper plate every time at 100 yards. Buck fever never prevented me from firing after taking up that practice.