Nothing beats a real college for something like that. Lecture every day, notes taken, daily assignments, homework, regular hand-in projects, regular tests, studying, exams. It really helps to see/ be taught the real-world procedure to know how to put it all into practise.
But picking up a real textbook, and reading it front to back, especially several of them, gives you a very good impression of whats going on. Start searching by title at the library, or buy. You may be able to connect all the dots through the points you learned reading.
If you remember autoexec.bat, config.sys, command.com, io.sys, mscd000, loadhigh, etc. I learned all that through books. Its like that. AutoCAD too. If you cannot do something, it may be an error in procedure, or one of the other little settings set somewhere else. Which ones take practice.