I look at it as having a stutter has fed my social anxiety. Introversion is a personality trait and the world needs us in it. For me, finding the techniques that work for me to manage my stutter has relieved some of my social anxiety, which makes it easier to talk to others. The more manageable it gets, the easier it is. There's absolutely nothing wrong with being introverted. Don't change who you are- you'll regret it if you do.