Appointment with the Trios and Internist

Hello all! I have my trios appointment coming up next week. Very excited but also nervous to fail and be delayed! Still waiting on my internist appointment. Do we really have to just wait for them to call with the appointment? I called the internist office directly and they said they dont book the appointments, someone will call. I like having all my ducks in a row so waiting on the phone call is nerve wracking