I reserve a full hour for our conversation. Make sure the meeting is on your calendar, and consider setting an alert so you have time to wrap up what you're doing and join without rushing.
You don't need to figure anything out before we talk. You may know something needs to change without being entirely sure what that change is. That's part of what we'll figure out together.
Please join from a quiet space where you can talk openly and confidentially. It also helps to have a notebook and pen for notes. This is your time and I want you to feel comfortable and focused.