From my many experiences with intakes, the counselor mainly asks a bunch of questions, such as "Have you ever been hospitalized for a mental disorder?"

And perhaps a question about what you are seeking from therapy......Maybe you could say what you said here. Describe what seems off about your behavior. Say you want help in sorting it out?

Try not to worry. The counselor is just trying to learn a bit about you to know how to work with you. It's not like you can fail it. You'll be okay.