There are a few things necessary to make friends: close proximity; repeated, unplanned interactions; and a setting that encourages people to let their guard do

There are a few things necessary to make friends: close proximity; repeated, unplanned interactions; and a setting that encourages people to let their guard down and confide in one another. See here https://nyti.ms/MmWvQn https://nyti.ms/MmWvQn for more on this. My suggestion would be to find some hobby you enjoy that allows for frequent interactions and a space where failing is commonplace. It will take time and putting yourself out there will be difficult, but hopefully it help you gain friends. Some possible examples of this include a sport, dancing, cooking, reading novels and analyzing them, electronics, board or table top games, etc. Ideally whatever you choose has a lot of social interaction. For me this meant a climbing gym but I know many people that do the things I listed and have made friends doing that.