Can't make friends

I went to a pub last night trying to socially expose myself but it made me feel worse. I could see everyone else having fun and talking and I sat there and could barely think of anything to say. It made me feel more hopeless. A woman invited me from a local online autism group I hardly know them. I think they are disappointed I don't have much to say but feel sorry for me. I just don't really use anything to say and am super depressed. I want friends but can't make them. But I have this issue in ANY situation basically. I'm female 37