It really just takes practice. There aren't any hidden secrets. It seems that is the answer to nearly all guitar playing problems. Patients truly is a virtue. Along with a stubborness to not let a piece of wood beat you.
Just keep trying it everyday, but not so much that it hurts your arm, and eventually it will become as natural as jumping off a 70ft cliff in frigid :) temperatures to one of those small blue palstic swimming pools that all of the neighborhood kids used to paly in on the front yard on a hot summer day........................
excuse me. Good luck :)
Favorite quote.....GET OUT THE BEANS!