Breaking shyness and social anxiety is not easy. It needs following thing in same order -
2. Good Nature ( Cheerful, Happy, **Being Yourself**, etc., are some ingredients )
3. Polite Speaking
4. Patience Listener
It's not easy to break the barrier of shyness & open to the world.
If any of above point is missing, it could do some damage to your reputation & bring your confidence down or any other behaviour changes arround / among your network.
Importantly, Being Social is also very very critical as it helps you in lot other ways, but that's another topic.
Start building personality based on above 4 factors to break any level of extreme shyness and social anxiety.