I train 20 hours a week for my sport, on top of full time study at University and running my own freelance business on the side.
While I advocate for sport, nothing beats meditation for increased focus!
I have tracked my stress levels over the last few years. During stretches of when I meditated, and did not.
I have absolutely noticed a difference in my internal thoughts and actions.
Before, my thoughts felt like I was in a forest surrounded by fog, visibility was impossible.
But now, I feel like the fog is slowly lifting, I am able to see the outline of the surroundings.
Give it a shot, It only takes a couple weeks of meditation to notice a difference :)