Every now and then — almost every day, actually — I read some of my older posts on this website. I always find errors in them and I always go back and fix those misplaced commas, misspellings, useless semicolons, ...
I should stop. Each of these posts is a photograph depicting the state of my mind in a specific point in time.

Why bother with fixing past mistakes? I think I simply need to acknowledge them and learn from them — I'll never spot them all anyway!
All I can really do is hope I will get better with enough time and practice.

I guess this applies to other aspects of my life too, not just commas.