You share about the isolation...good! Do people share solutions? Do you listen for solutions?
If you want to get rid of the resentment, get back to meetings and volunteer for service work. Be a greeter. Make coffee.
If you want OT be rid of the fear of being outgoing, work the steps. Find the exact nature of the fear.
As it is, you really should start at step one. And best to have a sponsor. Did you have a sonsor in the last? Have you called anyone from your old area after you moved?
I moved in September of last year. Sober and in AA for 9 years.,it wasn't easy moving away from my friends, but in order for me to get through it, I had to take responsibility for me and get my arse to meetings. Showed up early and stayed after and talk.
And I'm even more blessed now.