[TsuruchiHikari]

Hey guys!
maybe I'm a bit overthinking it but as I'm trying to learn more and more about art, I 'd like to set up some exercices for me to work on on a daily basis.
Never before in human history we had so much ressources available to learn and grow better as artists. There are tons of good and less good informations about drawing and painting.
Without having access to any art class I'm trying to figure out what are the bases skills, the base of my art-pyramid, I need to work on and how to properly work on them.
I identified those :
- Perspective
- Composition
- Light
- Colors
- Anatomy
am I missing some? Maybe the "digital" part of it should require one more skill to work on...

Then, I have checked and found good informations (books and websites) about these skills. Now, I didn't read them all yet, of course, as I'm more into drawing stuff rather than reading and reading... Here are my selection :
- Perspective (Matt Khor's tutorials)
- Composition (Jack Hamm's drawing scenery)
- Light (Gurney's Light and color)
- Color (same)
- Anatomy (Loomis, Hampton's figure drawing, Maughan's realistic faces)
Where or what else should I take to get more good knowledge about these skills?

And now my real question. Can you help me find good exercices to work on these specifics skills?
I've discovered that whenever I'm doing a study, I don't really learn from it. Simply because I'm not good enough as an artist to get what is and what is not important. I need those bases I think.
For instance, I'm doing figure-studying in different way for human anatomy. 45-sec-drawing (x30), drawing figures with simple geometric shapes and same stuff for the faces... Any advices for any of theses skills will be gold for me!

Thanks for reading!