In the meantime try games that don't require a lot of motor skills but really focus on only 1 thing at a time.

Osu helps reaction speed and handling the "panic" that comes in.

Games like Slay the Spire really help with being able to be thoughtful in choices without pressure.

I do and am on a med switch actually due to a reaction I have on my previous.

Helps a ton

Self talk and that isn't what I am referring to.

Better mental discipline is what I should say.

Only keeping sessions short and when you can be in the zone of focus, specifically building up good habits for control playin other games to learn it without just going off on a panic.

Again, medication will be the best thing you could start with

Medication and better mental would help a lot

E.T on Atari