Iron,
I know the feeling,a few years a go I took a 300 Ultra Mag right between the eyes,I have a nice scar,bled like a stuck hog.

I also got a flinch after it,I had a fellow recomend taking a 22 and put a few bricks through it,as I did.The next step I had to take a buddy,have him load the rifle.Sometimes he would put rounds in it and sometimes not,after awhile I started not thinking about it and started focusing on my breathing and crosshairs.

Hope this helps BBJ