Seriously. Try to have an alter ego that is outgoing and different than you today.
If you don't care for that idea, try comedy improv, meetups, and many other activities where you have to talk to people to be successful.
As you build confidence, it's much easier to manage. For me, it was a combination of doing something that scared the heck out of me. That happened to be performing in front of an audience to make them laugh. And I would work on things I was insecure about such as my body by going to the gym to lift weights and run.
Seriously. Try to have an alter ego that is outgoing and different than you today.
If you don't care for that idea, try comedy improv, meetups, and many other activities where you have to talk to people to be successful.
As you build confidence, it's much easier to manage. For me, it was a combination of doing something that scared the heck out of me. That happened to be performing in front of an audience to make them laugh. And I would work on things I was insecure about such as my body by going to the gym to lift weights and run.