Flip the script and choose things that healthily enrich your life rather than focusing on trying to figure out ways to leave some kind of mark on another. The best revenge truly is a life well lived.
I used to want revenge so f'n bad, and spent much time figuring clever ways to apply it, but it only served to break me down more than ever build me up, and all of that energy was attracting more like energy, over and over and over, and I had long since exceeded my limit of being able to handle that vibe, so I had no choice but to let it go.
Physical activity as mentioned above, being sure it's something you really enjoy helps, loud favorite music, nature time, primal screaming into a pillow or in the woods, lots of deep breathing exercises, volunteer to help another (within your recognized limits - don't tap yourself dry without taking care of self first), dabble in your favorite hobbies, make something or grow something, soak in a hot bath, etc., etc. Don't let that f*cker keep having so much control over your mind space. (I know easier said than done)