Maybe try to find a Discord with an interesting topic. Or try gaming, for example join a guild in “Where winds meet” (free game). Or if you speak a second language try conversationexchange.com and find a language partner.

You meet people there and can write/speak to them. Also don’t tell them about your situation, just try to “blend in” (won’t work for conversationexchange.com since this is more private). No one wants to be bothered with the problems of unknown people. Ask open questions either about the common topic or about the other person. Try to learn about them. Most people are flattered when you show genuine interest in what the do/like.

If you want to meet people try an app for your region where people meet (meetup or something). Choose something where you either hear a talk with a get together afterwards or where people do someting together (eg bord gaming session, hiking). It helps to have something in common to talk about.

If there’s a cafe/little shop near you go there regularly. The staff will recognise you and chat a bit after some time. But please remember, it’s their work, don’t bother them to much. They mostly only show interest because they have to. But chances are you’ll meet other people there who want someone to speak to.

If you only want to speak to someone “to stay sane” try to get a therapist or call a helpline for that. They are trained to help you or can give you contacts who can.

Random people usually have their own problems and don’t want to hear about yours. For that you need to make friends which is a long process. To find a friend you need to spend a long time with the person and the older we get the less time we have. But there are also groups for finding friends in your area. It’s a common problem.

You can also volunteer for something, for example an animal shelter or a food bank. They’re always glad if someone is willing to help and you meet people. If that is to much, try walking dogs for an animal shelter. Visit a dog park (even without a dog). You’ll have a conversation in no time. Ask about their dogs. Say you’ll think of getting one, what they would recommend for you.

So don’t despair and good luck!