why am I so awkward ?

So if you guys didn't know I'm usually very awkward. For example when I meet someone new I’ll be like “ Oh no what should I say to impress this person?” I normally wait for the person to make the first move. Even when I’m having my weekly speech therapy session, there will always be an awkward silence at any time. I always live in my own imaginary world. Sometimes when I’m sitting down at the dinner table with my siblings. They start talking and I have no idea what they talk about. Well I know what they talk mostly talk about school. I find it hard to relate to the topic because I don’t go to a mainstream school like they do. So yeah those are reasons why so awkward See you LWK