I live with my wife and our 2 teenage children. Im currently surrounded by her family. About a dozen souls in here. Im sitting alone - feel very alone. Full room, but feel alone.
I would ask for help especially from your brother, don’t feel ashamed as it sounds like you have nobody else. Either that or try to feel brave and take a cab to your appointments and stay online so that the forum users can make you feel better
I’ve lived alone since my wife died in 2005. 2005-2017 I lived in Essex, and was increasingly self neglectful. 2017my daughter finally persuaded me to move near her. Here in Wiltshire I get quite a lot of support from my daughter, and granddaughters .My daughter is officially recognised as a carer,by Social services.
You won’t be living completely alone. You have two lovely pets. Pets have a way of getting you out of bed and do things for and with them. You could also take trips to the library by yourself and browse books that you find interesting. You can also find local hobby groups to join.