i think i've committed a common error beginners do... i've been learning to play the guitar for a couple of months now... i'm having fun and all, but i did'nt pay attention to my left hand's positioning on the neck and fretboard

i just watched one of Benoit's lessons where he shows that the 'classical position' for the left hand is important to develop versatility and a stable, effective fingering mechanism

now, i'm not exactly a physically weak person. nor do i have a low tolerance for pain

but my wrist is bugging the crap out of me everytime i stay in that position for more than a few minutes. a very muscular pain

i'm assuming this is something i should ignore, and wait for muscle memory (so to speak) to kick in. is that the right thing to do?

any tips on the learning process? (my left hand goes back to it's usual freestyling self by instinct more than i'd like)

thanks guys. love the videos and the lessons!