How to cope with social anxiety post-psychosis

Greetings, friends. So I used to be a social butterfly. I could make friends anytime anywhere, even talking with complete strangers. I was the life of the party.

Well then I spiraled downwards into psychosis due to isolation, weed abuse and malnourishment and it completely changed me. Now I am withdrawn at parties, it’s difficult for me to make small talk, and I have intense social anxiety even with people I know well. All of this is happening even though I am well-medicated.

How do I get back to where I was before? Or, at least, how do I begin to tackle this social anxiety that wasn’t present in my life before I had my psychosis episode?