Watch the Start Moving online guitar lesson by Jeff Scheetz from Jump Start Rock Guitar
When you are fretting notes be sure to be really close to the fret wire that is closest to the bridge of your guitar. That will give you the best and purest sound. Press down just hard enough to get the string to ring out - don't squeeze it too hard - finesse!!! Your fingers will get used to fretting notes - don't get discouraged!!!!! You are asking your fingers and hands to do something that they have not done before - so it will take a little time to get comfortable with it.