Maybe you could give it a go to the subforum about anxiety, especially the one about social anxiety.

Do you have any possibility to talk to a therapist about this? It’s important to know why you decided to isolate yourself to begin to work on this.

You are trying to defend yourself from something, but what and at what cost? Because in my case, it meant...and I talk in past because I’m old, in my case took me to a lack of learning social abilities so much that I became a person who is afraid of any social relations.

You have to know what placed you in this position.