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.