Folks find different tools that work.
I can tell you what helped me. It might work for you . You can practice this dry fire till it becomes second nature but its productive live fire.
Discipline your trigger squeeze less about "perfect sight picture" and more about "pretty good sight picture" but the critical element is to call your shot .
You want a mental image of the sight picture the instant the gun fires.
The discipline is in the focus and concentration to do that.
I find that task distracts me from recoil anticipation.
If I detect a cringe coming on, I pause and regroup myself .
I want to be able to put my finger on a target on the bench where I figure the hole should be.
If you have a spotting scope or binocular, confirm the call.
You can only call your shot if your eyes are seeing the sights and the target.
If you start hearing footsteps....its OK. Don't add pressure to the trigger,
Relax, breathe, Start over. Its not a success to fire a flier.
Commit to only shooting good ones.
Maybe with a 454 you can only do 1 or 2 or 3 wheels. Its OK. Try to quit on a winner.
Its OK to warm up with 45 Colt level loads. " OK,now I'm ready for the big ones"
If you fire 3 good rounds and start going squinty .....If you can regain control, thats fine but only shoot good ones. Quit on a good shot . Even if its #3 . You can go back to 45 Colt loads.
Long ago I took delivery on a Freedom Arms 454 for a brother transferring from Ft Dix to Ft Wainright. I shot it some.
I was quite used to sessions of 100 or more rounds of full power 44 Magnums. I enjoyed the push and roar.
But after 15 or 20 rounds of heavy 454 loads I would "hear footsteps" and all I would accomplish by shooting more is develop a flinch
Everybody has limitations. At least for a while