I feel the exactly same way. When I was little and fluent I was super shy and never wanted to talk to hardly anyone. I didn’t say a word until I was 3 or 4 years old. Then ofc the inevitable happened and I started to stutter. Now I feel just like u said, an extrovert trapped in an introvert’s body. I want to talk to people so bad and make people like me and get to know them. With a stutter though it can just seem fruitless. I try to not let it hold me back but sometimes I don’t even bother striking up a conversation with someone. I hate that look people get, they go from smiling and laughing at something to that stupid dumbstruck face when I get stuck on a stutter. I hate it but it’s my life. It’s all of our lives.