I can't do one with out the other. In other words, the Guitar Tricks are useless without the Guitar Principles and the Guitar Principles are boring without the Guitar Tricks, the two go hand in hand, pun intended!
I was ready to give up many times, but then I was at a Rush concert and said to myself... ..."self, you wont be happy unless you do this." Finally, I can play some songs because I didn't give up!