Habits are broken all the time, and when that happens, you need to allow yourself to go back a few steps.
Progress is very rarely linear, and thinking that it is, might actually keep us from starting again a healthy habit we have just failed at for a while.
If you were used to run 10km a week and you have not done that for a month, would it make it easier to start again with 2km this week?
If you are used to meditate for 20 minutes a day and you have not done that for a month, would it make it easier to start again with 5 minutes today?
If you are used to write 10,000 words a week and you have not done that for a month, would it make it easier to start again with 5,000 this week?
We are not machines and we need to be able to cut ourselves some slack once in a while.