It sounds like my experience with school is similar to yours - I also felt that being self-taught it was helpful to have a program of courses, to round out deficiencies in my own knowledge.

Among the things you can get for free online, I think conference talks can be a better value for the time than some of the online classes. They are more self-contained, so you don't have to worry about finishing an entire course, and generally more focused on real-world use cases.

I've also found that browsing at random, and watching things that sound interesting works well for increasing what I remember. I'm currently building a search engine around this idea-

https://www.findlectures.com/?p=1&class1=Technology&type1=Co...