I'm have trouble consistently getting the chords to sound right. I get a lot of buzzing which appears to be caused by a lack of fretting pressure. When I first start practicing it sounds ok. After 5 minutes or so my fretting fingers develop grooves (mostly index finger). This in turn requires me to push harder in order to fret the chord without buzzing. Now I'm pushing so hard that it hurts my fingers. It's gotten to where I practice with the buzzing. My fretting position is right but I don't push hard enough to make all the strings ring consistently.
Is there anything I can do to help the situation?