Some days, self-care means going to bed early, filling up the batteries.
But on other days, self-care means dragging myself out of the house after a long day and going to my dance class. It means focusing on something else for an hour or two, seeing people outside of school, having different conversations, and blowing off some steam. On those days, all I need is to feel my body move with the music and get my emotions out. It also means going back home and being the good kind of tired, taking a steaming shower that clears the mind for the night.
Self-care has different meanings, and you get to choose your own definition in order to do what makes you feel better.