My humble opinion:
Videos are great for learning specific techniques -- I learned a lot from the increase and decrease videos. But I'm not sure you can cobble together a whole how-to-knit course. Proof: the fact that you didn't know what to do after casting on.
If I were just starting out, I'd get a copy of The Knit Stitch by Sally Melville. It goes step by step, telling you exactly what to do next, and not confusing you with a lot of extra stitch patterns. Yet, using only one stitch, you can make really good-looking sweaters, scarves, hats, and many other items. Melville is a great teacher and the book is like having her looking over your shoulder as you learn.
When you've absorbed everything in the book, you can go on to the second book in the series, The Purl Stitch, and then you're really flying -- there's nothing you can't make.