You need to look after yourself.
English phrasal verb
look after
To take care of someone or something.
Examples from real speeches
See how speakers use “look after” naturally, then open the full speech for more context.
Whereas we've got three amazing boys now, and a little girl that we have to look after.
These days, we look after our guests rather well, to the point that they often do not want to leave.
At the moment, the way I'm training and the way I'm actually looking after myself, I feel much better.
Neeta Ambani, thank you so much for looking after our children.
That is the age when a woman is expected to have a family, to look after young children, and sometimes take on the responsibility of aging parents.
Your teacher, your parents look after you.
The assumption and common practice that women and girls look after the home and the family is a stubborn and very real stereotype that not only discriminates against women, but limits men's participation and connection within the family and society.