I also applied to and had interest from an elite school in the east coast but faced the financial burden (fees, traveling to a major city for face-to-face interview, etc) and lack of mentorship/guidance in HS to successfully pursue it. I was very fortunate however to earn a full ride scholarship to any in-state public university through a new program that was targeting students like myself, otherwise the financial aspect alone would have made it impossible. Not to mention the obstacles "navigating college" that you articulated so well.
I eventually earned my BFA and feel pretty fortunate to be in the position that I'm currently in. In the last few months, I reached out to the foundation that provided my scholarship and have started volunteering my time and story with students facing similar situations. I had always been very hesitant because I felt that there wasn't much I could offer, but the more I talk with students I'm reminded of what it was like when I was in their situation - just looking for someone that could provide a little bit of guidance and/or clarity.