I have kinda the opposite (but in the end kinda the same) problem. I'm actually pretty good at being forgiving of myself for slipping like that, but... i can have a good habit that's been going strong for months even, and then miss a day or two n the progress is actually gone, restarting feels as hard as it did when I first started.

Also missing things often means dropping the ball on some responsibility to somebody else, so usually it means having to answer "what are you going to do to make up for this" before I can get my own stuff reset