I am an Indian High School student and I love to study physics, but studying it on your own has its own challenges, and I have never studied it systematically but today I realised that it would be much easier to do it that way so,
What is a highly recommended syllabus or curriculum which could be used to SELF- STUDY Physics from High school level (Olympiad preparation included) to University level?
What books could be read for those topics (High school level to University level)?
Note: This question is asked from the point of view of Self-Study, so please answer relevant to that.
Often textbook sources require a subscription for access. However, I recommend https://openstax.org/subjects/view-all as they have many free textbooks available for High School/College level courses. You can read on-line or download a pdf of the entire book of interest without restriction.