Extreme Extroverted to Introvert, which book help me

Hi

Young age I used to extrovert, had lots of friends above my age and was good at social activities.

When I moved to New York, I had lots of responsibilities, so I avoid making lots friendships and hangout. Somehow I try my best to avoid conversation with people I don’t know. Currently I only had few friends we just hangout weekend that’s it. But I don’t have any other network.

Currently I’m Accountant (I don’t deal with clients, I just report to my boss)

So which book will help me to overcome introvert to extrovert. I also had real estate license but due to my shyness I try to avoid making & closing deals.

by SportOk6611