I bought a B+ about 3 months ago and after successfully booting up NOOBS, I am absolutely lost with where to go from here. I tried googling things to put into the terminal, I tried looking up cool things to do with it, I even sat there with a buddy of mine who supposedly knows his way around linux pretty well, and I still can't even fathom how I could make this thing useful.
Is there a textbook I could read? Are there tutorials I could do? Do I need more hardware? I want to be in the know with this thing. I want to put the time into learning exactly what it is capable of. I am about to graduate with a degree in mechanical engineering so I know I'm capable of learning it well. I want to know what the hell is going on within this magical chip and how to harness it's power, but I feel like I'm fucking lost in space.