You may find the following books provide helpful approaches to self-care. Click on the link for ordering information.
Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones
Big Feelings: How to Be Okay When Things Are Not Okay
Radical Compassion: Learning to Love Yourself and Your World with the Practice of RAIN
Rest Is Resistance: A Manifesto
The Happiness Trap: How to Stop Struggling and Start Living