Retrieval practice is by far one of the strongest, evidence-based ways of studying and remembering longer term what you've learned (in a meaningful way.)
Bonus: It's also faster than what people typically think of when they hear "studying."
I highly recommend this book, "Understanding How We Learn, a Visual Guide" by Yana Weinstein and Megan Sumeracki. https://www.amazon.com/Understanding-How-We-Learn-Visual/dp/113856172X
It's a slim book with LOTS of images. It's great for people like teachers, but it's also great for people who want to understand how to be a more effective student (i.e. learn better.) Part 3 is devoted to strategies for more effective learning. It goes into retrieval practice and how you can spend your time most effectively (as little as possible for the most gain in learning), and how to do just that.
The understanding of human learning has grown by leaps and bounds!
​
Also.....for what it's worth, if you find you excel in more non-traditional learning environments or self-taught learning, computer programming and web development are still highly open to hiring those who can just prove they know what they're doing rather than a degree (e.g. have a github account that shows the things you've built and done.)
I don't know of any online classes, but you might consider studying on your own. (That's what I did when I wrote the GED exam decades ago.) This particular book will have all of the study material you'll need:
​
I work with GED students and one book I like to recommend is GED Math Test Tutor by Sandra Rush. I'm a big fan of the way it breaks down and explains concepts. It won't take you all the way through algebra 2, but it will get you through Algebra I and also provides a good overview of those traditionally frustrating concepts- fractions, probability, etc.
/u/aspiredvideo,
Check out the book list in this blog: https://blog.blcklst.com/essential-books-for-screenwriters-72a7ba89bc24#.e50ocs1ox
I've read at least half of the books on this list before I found this list, and the ones I read were known classics. So you can expect the list-maker knows his/her books. I bet every book on this list can be considered a classic. When I found this list, I bookmarked it right away. I myself intend to go through the entire list.
I particularly recommend reading Hitchcock. That book will blow your freaking mind. The book is a transcript of a roughly 7-day long interview between Hitchcock and Truffaut, two heavyweight filmmakers. They LITERALLY go through every single film Hitchcock made and discuss each one; that's at least 40 or more films. The book is pure gold. In fact, they're making a documentary ON the impact that book had on the future generations of filmmakers that came after Hitchcock, like Scorsese and others.
I would also highly recommend Rebel Without A Crew, Making Movies, Poetics, The Writer's Journey, and Story. All great books.
Good luck! Hope it helps! I know it helped me!