How do I scale from here?

A while ago, I wasn't really sure how I wanted to monetize anything so I just focused on building the product.

The product is notes for a secondary British curriculum that I have experience in..

I'm almost done a chapter from that, so I was wondering how I could monetize?
Wait until I finish all chapters then make a subscription?
Or is there something I can do with this to make money?

Open to ideas!

Author: DecodeYourExams