Feeling Alone with PTSD and Struggling to Talk to People

I just feel so alone with my PTSD sometimes, people really just don't get it and think it's so simple to get through. I just wish to be able to talk to someone who really understands and to just relax with but it's hard to find anyone. I hate living with it and when others don't understand, it just makes me hate myself even more, like a vicious circle. it just feels so empty and I struggle so much to talk to people.. though, I might be getting tested for autism next year, so that's a heads up I guess. Will probably gey other tests done via psychiatrist so I'm glad that finally somethings getting done. I just feel so lonely, I keep having dreams of talking to people or screaming and crying for someone to talk to in person. I've always struggled to talk to people in person but I had at least one person but now everyone's busy, so I have nobody I relate with. nobody to talk to comfortably in person anymore.. does anyone know how to find people to talk to? like clubs and that?