create organized posts like courses

I run about design and office tutorial site, I have created many posts about tutorial, but it seems not well structured. I want to make the reader easily access what they need and track their learning, may be like course system. So for example, I have posts categorised as photoshop beginner, advanced, expert. If the reader already advanced, if he wants he can jump to learn how to become expert at photoshop by visit this, let says “course” (many of my posts that packed in one bundle). In here they can track their progress.

However, the reader also can read any random tutorials I post without enroll in bundled of my posts/”course”. It’s so convenient if there any way to do this.