A Dream Job to a Dream Job?

My dream job is to be a professional fiction writer. Making that a reality takes a LOT of time to hone that craft, and I have a LOT of catching up to do in that department. It's not like I can quit my day job to write to my heart's content. I have a lifestyle to support! So what is a girl to do? As I've started taking classes again, and started crafting again, it has me pushing around an idea. My dream job effectively requires me to find more time in my day, but now that I'm back to my old routine of taking classes on every subject under the sun, I don't have time to write. A dream job should be comprised of activities that you love to do, right? I love developing databases and programming. I love taking classes and learning. I love crafting. I love teaching. I love writing and documenting. So what if I combined those in a way that allowed me to earn residual income on an upfront investment?  I would love to create high quality instruction manuals and videos, teaching all the cool things I learn from the books I read and classes I take. I could place them on a website where people could pay to download the instructions and stream the instructional videos.  That way I would be able to invest time upfront to develop the tutorials, but the income would come in long after I'd completed my work on the product.  Residual income.  Seems like a great idea.  I don't know how to create a website where I can stream video and download docs within a shopping cart though.  Not sure what classes I need to take to learn that.