It's totally possible to build a new network of great friends at literally any point in your life! I have moved multiple times over the years to entirely different regions where I knew zero people and I have always eventually found new friends. (I'm also autistic and introverted, so if I can do it, most people probably can.)

Sometimes it might take a while to find the activities you like, and thus the people who share your interests, but they're out there! If nothing else, it helps to start going on a regular basis to a local bar that hosts live music and just nurse a drink (even a soda if you're sober) and hang out, you'll start sussing out the social fabric in the area pretty quick.

Good luck, you can do it!