u need to 'set' ur muscles in ur hand to work round all of the fret board, and u need to relax ur hand, mind and breathing and all of your body eventually as u do so all the time u play or practice..it gets better eventually but not if u force it. otherwise ull strain.

start with the 1st ans 2 nd finger at the 1st string and place em the 1 & 2 frets resectivley move upwards ill u reach string 6 and downwards again, move towards frets 2/3 and do the same till u do all ur fret board. then do it with 2/3 fingers, 3/4 fingers, 1/3, 2/4, 1/4. that way u concentrate on placing the tips of ur fingers on the string ur trying to play and u get to find out what discomforts you. when u try to practice other complex stuff.