As an INFJ female, I used to freeze up when guys I liked spoke to me. I am still pretty hard to read in that regard, so I'm learning to be direct. Keep trying to talk to her.
Lately I've been these conversations with my mom about my anxieties and such. My mom keeps telling me I have control issues when I tell her that I feel drive to change things when I see they could be better. It's my perfectionist qualities combined with my need to help others. I don't know how...
I would tell myself that it's okay I don't fit in. It will all be worth it one day. It will get better; not easier, but better. Stay strong and don't close everyone out.
I would just talk to her honestly. It seems very tough, but try to work it in a way where it doesn't seem like you're annoyed. Tell her you enjoy your alone time and don't always want to chat.