Guess what? This is a massively over-complicated look into guitar scales, major scales, and pentatonic scales and how to use them. Want to know some more efficient ways to go about using this stuff? Check out my article at this link:
Plain and simple, like any other skill there is no "fast" way to learn to play guitar. Learning any skill takes time and dedication. The best way to learn guitar "fast" is to dedicate as much time as you can to it and to get some good.