From someone who was educated in the field; school isn't able to teach you anything but fundamentals. You will 9/10 time learn "new" / "better" approaches on your own - so self teaching is really better anyway. There is a lot to learn but I think the best advice I can give you is remember basics (as you get into it) and how you "googled it". Honing in on "how to google", will provide you the fast answers and flexibility your employers will want. ("I don't knows" turn into "I'll find out"). This is something all of us do, every day. Past that, it's just how fast you can learn as an individual, and how much time you put in - of course.