It depends on the student, parents, time of year, and other circumstances.
I've worked with motivated students with engaged parents who have only booked private consultations with me 4X over their 3 years in the program.
Other families have booked 30+ hours of private consultation with me over 18 months.
It depends on: (1) when you start, (2) your budget, (3) parents' time, willingness, or ability to help, (4) student's ability to follow directions and execute plan, (5) how close you are to winning a $500K scholarship, (6) my availability.
Some students follow the video lessons, journal, and quizzes closely and just need a little tune-up here and there to stay on track. Others prefer my help on nearly everything (e.g. extracurricular activities, course selection, interview prep, essay brainstorming/editing, athletic recruiting, highlight videos, scholarship negotiations, project management, building a college list, how to maximize fitness test, how to appeal a negative medical result from DoDMERB, etc.)