I agree with Raedwulf about going to a classic guitar teacher.

I hesitated to suggest it because of the general resistance many folk-oriented musicians have toward "classical" teachers of any kind. But the fact is that classical technique is the most efficient way of playing any instrument—(Wow! I can hear the hear the howls of protest and the heels digging in already!). But—considering the hours of practice that virtuosi like Julian Bream or Itzak Perlman or Artur Rubenstein have to put in to virtuosi in the first place (and then to stay that way), they can't afford not to play the most efficient way possible. And that means being careful not ot play in a manner that will screw up their hands, elbows, shoulders, or anything else.

Why not someone who teaches folk guitar? Because that could be a real crap-shoot. Many teachers of folk guitar are, themselves, self-taught. And many of them simply pass on their own poor technique and bad habits. Don't add somebody else's troubles to your own. In this case, a classic guitar teacher is best. Don't worry, it won't corrupt you.

But do look into the manual and the video. Even if you weren't having problems, the calisthenics are great. Very demanding.

Don Firth