That really depends on what you call "basics", to be honest. Truly, I consider what is taught here as basic to be more of a primer to occult practices and thoughts. Yay for subjectivity!
I would suggest looking into occult philosophies, cosmological models, ASC (altered states of consciousness), different forms of spiritual working (spells, rituals, rites, curses, blessings, etc,), and medicinal/chemical properties of whatever you are physically working with just to be on the safe side.
The idea is to expose yourself to many different things and further research what catches your eye. If you're looking for specific ways to practice specific things, please be more specific (yay for redundancy).
What are really good exercises that I can do to help me unlock my inner power? BecauseI want to learn and help out in the world with different things. I've always wanted to learn but don't know howso I need to know how to stretch out my body because I'm in school I am able to stretch in my dorm room.