A variation of this that I realized fairly recently is that striving for excellence doesn't mean the journey towards it is garbage. I can both feel pride in what I've done while also acknowledging where it could have been better with the intent to either circle back and do it better in the future (for like house projects) or avoid that mistake next time (for creations).

Like I did a cross stitch of a wolf and it skewed a bit because it had a lot of half-stitching (without going into too much detail, a full cross stitch equalizes the forces the threads put on the canvas while a half-stitch puts an uneven force on it). So for my current one, I got hoops that I previously didn't think I needed, which hold the canvas in place outside so the threads are less likely to put a high force where they are.

And my next one will involve a better ordering strategy because my fairly random approach caused some areas of the canvas to bunch up more than others. Less noticeable than the wolf's skew, but still a flaw I'd like to fix going forward but I'm not beating myself up about the current one.

Assuming this is even relevant to the context you mean lol.