First, pretend, just for a second, that it's a musical instrument, like say...the banjo. Then, think of all the things you would do to learn how to play the banjo, such as learn scales (major, minor, diminished, augmented, etc.), arpeggios, modes, chord progressions, proper posture, fingering technique, how to tune the damn thing, maybe get a teacher, etcetera. (Please note that reading tab or practicing how to head bang do not immediately spring to mind.) THEN DO THOSE THINGS! Jesus ****ing Christ.