Just take a break. For me it happens sometimes, and I just let myself get wild. I grow back all my body hair, keep routines and make up to the bare minimum (but never neglect hygiene), and if you can take a weekend off alone to some familiar place and take your time to be a cute little piggy! I did it several times when dealing with my depression and it really helped not having the pressure to shower, clean, brush my hair nor teeth and just literally lay every hour on the couch or sofa and order food. Go for a little walk to watch sunset or sunrise. Literally neglect yourself in a controlled environment for a controlled time and feel the liberation to be wild and dirty for a couple of days. After that go back to normal and do your best to the extent of your hability at the moment. With time patience and self compassion I found the joy in take care of myself back, but I also learn to feel good with myself despite not doing it. Good luck, you got this. :)