RE: All I can say is LOST
I have had it for years. Worst of it was a season in which no matter what I did, I could not hold a pin on a deer to save my life. That was the year that forced me to switch to a release. I went with a middle finger trigger to get the best of both a trigger and back tension. A combination of that, and this exercise got me out of it: Draw and hold on a target, letting down several times. Now, have someone stand with you when you draw and aim, with them understanding that they should randomly tell you to "let down" or "shoot" after you tell them you are on target solid. You cannot shoot unless they say so. Keep the session at close range. Repeat for several sessions. When you go back solo, still draw, hold, and let down often.
This will get you back on track, but only temporarily. You can NEVER completely shake it, it will always be there to some degree.
When mine comes back, and it does many times a year, I simply adjust the trigger travel and tension on my release which throws off my subconscious memorization of when the release will fire. Back to a suprise release allows me to concentrate again only on aiming and not on firing the release.
Hope this helps.