Persist is continue firmly or obstinately in an opinion or a course of action in spite of difficulty, opposition, or failure. So maybe starting all over again on these habits isn't so much a failure as an opportunity to practice persistence. An opportunity to get back up, brush myself off, try again. An opportunity to be strong.
The word for this week is tenacity, which is the ability or quality of having a firm grip on something, being very determined, or continuing to exist. I don't really feel like I've got a grip on anything right now, but I am determined that my work should continue to exist, even if it is being completed a little more slowly than I would prefer.
A while back I made my husband take a silly Facebook quiz during which he said that the thing he most admires about me is my ability to persevere. Not gonna lie, I am tearing up a little right now just thinking about it. This is not a trait I would have every assigned myself.