Since being "introvert" is your comfort zone, you need to get out of it.
And leaving your comfort zone may be the hardest thing to do since you are so used to it.
Just go out and talk to more people. Don't think of any "failure" outcomes, eg: people might not like you, they may not want to talk to you, you have nothing interesting to talk about etc.
The fact is, most people won't reject you. You just need to take the 1st step, though it may be hard right now. But you gotta do it. Who knows people are waiting for you to talk to them too?
