The various Sorcery Paths look interesting and potentially useful, but finding a teacher both able and willing to educate us in one or more of the paths we're interested in seems like a pretty daunting task. Harry is available, I guess, though we aren't his apprentice and, despite his power and skill, doesn't seem to practice much of the more interesting types of magic we might want to learn.
I'm not sure how learning works in the system we're using. If we manage to find a teacher for a path, Healing for example, would getting enough instruction to purchase one dot in the path be enough for us to continue learning it on our own through self-study and experimentation, or do we have to purchase/learn two or three dots into the path before we reach that point? Does the teacher need to have a certain number of dots in that path before they can teach others?
If instructors only need a dot or two in a path to be able to teach us, and we only need to gain a single dot before using Exalted BS and XP to bull ahead on our own, we might be able to find relatively minor talents who aren't White Council material but skilled enough in their specialty that they can fulfill our needs. Could make for an interesting gap year before we start college (if we go at all), taking a road trip across the country to find magic tutors. Maybe fighting some evil on the side bonus XP as we go.