I am overly extroverted, my husband is incredibly and painfully shy.
When we first met, I would talk and talk and he would just stare at me. I never knew what he was thinking or feeling. He was just terrified of everyone!
Gradually, he began to trust me, and now we talk all the time - both of us. Plus he is not so afraid around other people, because he got confidence around me. Sometimes I see him take a deep breath if he is meeting new people, but he plunges in.
Now, it has taken many years to get to this point, and he is still a shy person, basically, that will never change, just like I am outgoing, but I have learned to tone it down. But God created each one of us in his image, and he is not unhappy that we are the way we are.
I just want to encourage you to be a good listener, because that is what my husband was for me. I want to inspire you to look for just one little victory every day. Maybe just saying "Thanks" to someone, or maybe paying forward a lunch.
And do pray that God will show you the way he wants to use you for his glory. He can use anyone, including Moses with speaking problems and impetuous Peter, who loved to stick his foot in his mouth.
God loves you just the way you are, but if you are unhappy with your social interactions, God can help you with that. Of course, there is always counseling, Life is an on-going process, and if you get some tools to relate to people, you can grow from there.