You must know your basics--its easier. I am taking in some apprentices, so if you want to be one of mine, just message me. :)
Here are some of the basics:
Days of the Week and their meanings
Energy Flow & Control
Colors and their meanings
Spirit Guides (if you want)
I would learn shielding before anything else. It's safer to cast spells, because casting spells is dangerous. You can read some of the articles and write notes in a notebook. Writing helps your brain remember it. It's good to practice meditating, shielding, grounding, and centering.