I am similar (wfh, don’t need to get ready most days).
I recently organised my clothes and it really really helped. 2 or 3 bags to the charity donations bin - anything you really haven’t worn in the last year, don’t reach for, or doesn’t fit anymore.
My wardrobe and drawers used to be messy and overwhelming, so on weekdays I’d reach for the same leggings and couple of jumpers.
Now I have a really pared down, organised wardrobe, I can wear a different nice top and different cardigan or denim overshirt etc every day (still with leggings but it’s easy!). Adds a bit of differentiation and helps me feel at least a bit dressed up!
Makeup isn’t needed, just good skincare, and hair can be brushed or put in a claw clip. Bung some nice earrings on and a necklace. Good to go!
Finding a reason to leave the house during the day really helps me too. Usually a quick gym session, coffee at the gym cafe, or dog walk.
If you don’t get out and about and aren’t “perceived” by other people, you won’t feel like yourself. We need to be perceived by others to reconfirm our self identity. (Psychotherapy babble but I find that it’s accurate).