There are some very good articles about guitar technique that you can access on the web for free. You can be almost entirely self taught, just from accessing the web, if you are motivated enough to seek out information and then act on it. If you really want to learn how to play the guitar, then you can use your desire and hunger as your motivation for making practice time, etc. Always opt for practicing your guitar before the TV goes on in the evenings after school or work! Make your guitar lessons your priority, rather than a side dish and you will learn to play guitar in no time!