Don't know what to say

Don't know what to say So I'm 26 male stutter mostly with blocks sometimes pretty badly but from time to time it get easier. Recently I went on a date with this girl and everything seemed to be ok I wouldn't say it was a bad date and she was fine with me stuttering (even though I tried to control it as much as possible) My problem is over the years of stuttering I developed this mental block by trying to avoid conversations and don't have this social skills, I just don't know what to talk about. My head just feels empty and I feel a bit stressed around new people. I understand that bet way to improve it is just go out there and do it, but what else can I do to get better at conversations and being able to keep flow going.