Sit properly. While playing a video Game, it is best to sit down in a nice sturdy chair. The best posture is sitting down, with both feet on the ground, at a 100-degree angle. This takes pressure off the back and helps with comfort.
Be hygienic. Take a shower, even if it’s a quick three-minute navy shower. Wash and dry off your hands and face well, dry and comb your hair, and wear comfortable clothing! It makes a big difference. Another good tip to get your reflexes nice and jittery is to wash with some sort of mint body wash. Mint leaves a nice cooling sensation on the body, which generally leads to good comfort, see their price list.
- Avoid having greasy hands by any and all means. This may become difficult if your hands are moisturized; in that case, go and do something else until they feel wet without actually looking wet. Dry off with a hand towel, and see if they are still greasy. If they are, just wait it off-maybe go to GameFAQs  to get/give some help!
Remember that confidence is key. And of course, the next logical step would be to be confident. And make sure to write “gaming” on that list you’re making! Don’t just be generally confident; be gaming-confident.
Ensure your eye fixations are in good condition. If you wear contacts, make sure they are not dry. If you wear glasses, make sure they are clean.
Keep skilled through practice. Finally, have a lot of fun. There’s not much one can say on either, except that just keep doing what makes you tick.