Social anxiety and loneliness

I’ve been like this for probably 5 years now. I get fidgety, sweaty, shaky, and my head goes blank. I can’t talk to people very well especially and large groups. It makes making meaningful connections and relationships impossible and I’ve tried putting myself around more people to get better at it but I’ve gotten no where. I’m gonna talk to a psychiatrist soon but I’m worried I won’t be able to fix it and I’m just gonna end up alone and not get to be a dad