HI OP.
I'm so sorry you are feeling like this. I know life is tough at times but please remember bad times dont last forever. Whatever you are going through is temporary. We don't know what is in store for us. What if the best is still to come?
Have you thought about joining some local groups to meet new people? Maybe looking into a hobby that you once enjoyed or something you have always fancied trying? Or what about some of the friendship websites/apps, the same as dating sites but it's not for meeting to people to date, it's for meeting like minded friends?
I know life is tough & sometimes it's really shit, but better days can be ahead. Have a think about what you want from life and what you can do to achieve that, taking it slowly, bit by bit, one step at a time.
Please think about calling breathing space, the samaritans and Google any local mental health support groups that may be in your area. Also, visiting your GP who can direct you to the right support.
There is also a text line you can text called SHOUT if you don't feel like talking but would rather text. They are available 24/7.
Please have a think about reaching out for some support ♥️