Need study guidance/roadmap for Quantum Physics

[DanteKennedy]

I'm curious about the physics at quantum scale and I want to learn more about it. But my school doesn't teach quantum physics with sufficient depth (they usually teach it in the last semester of 12th grade and only the very basics). I'm planning on self study when I get into college. Can someone guide me on what to learn on quantum physics from the very start? What kind of subject or principle should I master first in quantum physics and how I would slowly move toward the more advanced concept?
(Sorry for bad English)

 

[PeroK]

This is, IMO, the most accessible introduction to QM. Even if you don't follow all the maths, it is highly insightful:

https://physics.mq.edu.au/~jcresser/Phys304/Handouts/QuantumPhysicsNotes.pdf