@Heisrotten2thecore you have my utmost sympathy. This was me 2 years ago, I went down to a similar weight and just looked ill.
Things I did that helped:
Went to the doctor did sleeping tablets. Only took half the recommended dose a couple of times a week but boy did that make a difference. Once I was in a better routine I then starting taking Nytol (over the counter) then went down to herbal nytol and now take nothing and my sleep is on the whole good.
If you want to drink tea, do so. Find some things you can stomach, lots of good recommendations on here. And for now it doesn't matter what it is. I used to eat a lot of cereal and milk and butter and jam on toast, not great but it got me through and gradually over time my appetite started to come back. I found that eating with others did help.
Highly recommend a walk a day, in your lunch break maybe, makes a massive difference to your well-being.
If you can, book a massage, sounds crazy but human touch is important and this was suggested to me by my councillor.
Sorting and tidying the house sounds good, reading (I still struggle, my attention span was and still is shot).
I love baking so used to make cakes for my DC and i and for colleagues.
And talk, good friends will listen, failing that use these boards.
Good luck, it's tough 💐