Take it from me
I have had to learn this lesson in the most unpleasant, literally painful way. If you do not take care of yourself -- in big ways and small -- it will come back to bite you in a most unexpected and not very nice way. TRUST ME when I tell you to do this for yourself.
Self-care includes eating right, getting in activity, proper sleep (yes, I *mean* this), hobbies, recreation, de-stressing, connections (and not just online ones), and finding your perfect balance -- which very likely is NOT the perfect balance that someone else has.
Take care of yourself. No one else will. People will help, but they cannot, e-v-e-r, care for you and give your body, mind, and spirit what it needs. ONLY you can do that for yourself.