I think the problem many people face is the feeling of overwhelm when the compare where they are with where they want to be.
Instead of focusing on what they can do from where they’re currently at they focus on the gap.
And sometimes that gap is vast.
But like I said at the start it’s just a matter of practice. And that might be to practice voicing your thoughts in a group setting when someone asks of anyone has any points they want to add.
Practice going to events alone and making an effort to talk to strangers despite the discomfort or nerves.
Pick what you want to work on and see how it goes. It might be challenging the first time but don’t be put off because we all know that practice makes perfect and if not perfect it makes you better than you were yesterday.