For example if I wish to track how many posts have I edited.
An easy way that I use is:
- Click on the review link at the top of the page https://stackoverflow.com/review
- Click on one of the tasks, for example, close votes https://stackoverflow.com/review/close
- Hover over the bar to the left of stats, and Copy Editor exists to show you how many edits you have (as well as a couple others).