Pretty easy, organization, I work on the comic and then spread out the updates so people don't think I'm dead and during that time I work on something for myself and nobody else, be it an unrelated activity, self care, or cleaning the house.
Also it's important to not beat yourself down when you aren't doing anything, it's abusive towards yourself! and you have to accept that your are human. You'll know when you'll know when it's time to take care of yourself ad when it's time to take action :3