Is it possible for a person to become more extroverted?

Or are you generally the same level outgoing for your entire life? Lately I have noticed that I would like to be more talkative with people and open and outgoing….but….I guess I’m just not? And I don’t know if anything can be done. I feel like…a barrier that is keeping me from just being uninhibited, and I guess that stems from a bit of self consciousness and not being super confidant? Right? What do you guys think?