I used to have a lot of issues with pressure in pool.
I think the hardest issue was knowing i could do all this stuff when there was no pressure, and then for whatever reason, the wheels falling off and not being able to do it when it mattered.
That whole thought process just sucks you right in when you are dogging it.
The self doubt would come.
Then the pooch would appear.
Then the anger.
Repeat.
Nothing like making a great out in 9ball, leaving yourself an easy 9, and then firing it into the rail.
But that's part of the learning curve.
You learn to deal with it. To not let it control you, but instead, to control IT.
There was the fish that hung out in the pool room that said something once.
This guy went off for a lot of cash, big time.
We would all take turns pounding on him. (because he dogged it worse then anyone ever could)
But he said something one day while watching me play someone else, that has stuck with me ever since.
I had hacked my way out of a tough rack of 9ball, and he chimes in from the sidelines. (think what a totally stoned space cadets voice might sound like)
"WOW MAN, that was great! See, that whole rack started out as a fantasy, and you turned it into a reality. You decided what you were going to do and you MADE it happen, like a self fulfilling prophecy"
At the time, we were all kind of laughing cause he was sounding all goofy space cadet-ish when he said it. But i thought about it. A LOT.
It was then that it really registered that i really was in control of my fate while at the table, and that if i was thinking negative, negative things would happen, and if i was thinking positive, positive things may or may not happen, but bad things would happen far less often, then if i was thinking negatively to begin with.
Just like those newbies who are afraid of scratching in a pocket, when there are a bazillion ways to avoid scratching in the pocket, that they know, and then when it comes time to shoot the shot...they go flying in the pocket at warp speed.
With skill, comes confidence.
The more i worked on my game, the more hours i put in, the more shots i learned to master, the more i dog proofed my game.
Easier to play when you know the shots, or have put in the time so none of them are unfamiliar, but instead, they become "routine"
Now don't get me wrong, i can miss with the best of them.
But it's not because i have a lump in my throat, or because of my heart pounding so hard it's flying out of my chest.
Most of the time, when i miss a shot i am supposed to make, it's just flat out laziness of some form, i am too tired to see straight, or an error in mechanics/sighting/PSR of taking the shot.
Choking is all in your head.