I did not read all the post, so if some one mentioned this sorry for the repeat. What has worked for me in the past on reaching full draw and anchor point, is to walk up to a target butt and stand 3-4' away. Now close your eyes and draw back and concentrate on nothing except reaching your full draw and anchor point (remember what that feels like) then release your arrow. You’re not looking at or concentrating on hitting a target, you are only working on the mechanics and how it feels to be at your full draw and your correct anchor point. Do this 6-12 times and remember what it feels like and incorporate that into your normal shooting. I go back to this sometimes if I haven’t shot in a while to bring every thing back in line before shooting.
Just my .02 cents that has worked for me.