I had killed a pile of bucks before the fever set in. I was in my mid-thirties and I was winging and missing with disgusting regularity. I had missed a really good buck at dusk and about three months later I realized I had not seen any muzzle flash. I merely blamed the rifle, it was an 81 Browning BLR in a 308, and sent it on its way. I picked up a push feed Model 70 in a 25-06 and went back to whacking and stacking.
I knew that there was absoulutely nothing wrong with that BLR and it was all a mental thing. But I can only say it worked for me.