Selfcare when sleep deprived.

Hi everyone. Selfcare was never my strongest ability, with 3 kids, a job, I lost this feeling somehow. Lately, the last 2-3 years, I started listening more to my body, which is not easy for me. Also trying to understand my needs and wishes. So somehow my childhood wish brought me to the situation of getting a puppy (after lots of doubts). Puppy is a hard work, and..some sleep deprivation. I feel my selfcare is almost back to zero. So the ones with small kids, puppies, suffering from insomnia or anyone else who is not getting enough sleep and cares for someone 24/7, please share your routine. Things that brighten your day and help to go on and have some me-time?