<p>This is not meant as advice, but a relating of experience.
Both my son and daughter took no courses and received no grades. What they submitted were simply reading lists of what they read, sorted after-the-fact under “subject” titles that an admissions officer might understand. Of course these were backed up by test scores, in their cases SAT Subject Tests.
My son graduated from Dartmouth, and my daughter just finished her second year at Princeton.
Please take advantage of the freedom home schooling allows to dig deep into what you are curious about and do things kids confined in school cannot. To me, that is the sweet spot of home schooling, and makes complete sense to admissions officers to boot.
Happily, when my son and daughter applied, there was no such thing as the Common Application home school garbage. I would advise ignoring it or working around it.</p>