While my intention was not to be harsh,(had it been, there would have been NO doubt about it)---(yeah, go ahead, Serp...),
Without getting into long strings of quotes,you yourself said that you're young. That brings a certain "innocence" to your study. But that's the POINT of "study"-to get from the wonderful feeling of something new,(and usually misrepresented by the authors of the books young people ordinarily choose...), to the WONDROUS feeling of finding where you actually need to be.
As has probably been said,(and if it hasn't, I'm saying it now).
A) One at a time. You can't keep your thoughts organized when you have a thousand or two bouncing around your cranium. Studying for a bunch of classes, while important in this lifetime are not nearly as important as things that will help you to live your life after you complete your coursework.
B) Remember, some of the paths you'll study are narrow. It doesn't mean that they're being "closed minded" or "unwelcoming" or "un-inclusive" or any other "negative" issue you can name. They just are what they are-but are not suited to a "mix-&-match" arrangement, or any more "inclusiveness" than they feel necessary. Many paths, Wicca included, are of the mindset that if you want to be one of them, you'll do it THEIR way.
Read our "Wiccan Books" and "Wicca Internet Resource" guides. Learn which books are "keepers" and which are useless or worse.