I know that this is not what you were hoping to hear, but give it a try - sign up to volunteer as a kittens socialuzer. Those are people who pet and play with rescues to make the rescued kittens more sociable and ultimately more adoptable. What would be in it for you is constant touch which will ground you and put a stop on constant irritability.

Another approach, from the opposite angle, is to play squash.

Another approach is to take black crayons (like kohl) and scribble scribble scribble on countless sheets of white paper. If you have that option, you can then burn the paper, symbolically letting your irritability go up in flames and ultimately vanish. Instead of scribbling, you can write curse words - it is up to you.

If volunteering regularly is too much of a commitment, and it certainly can be, go to a cat and kitten adoption fair at your local Petsmart and pet those kitties until you relax.