One thing that helped me was playing an upright. My fingers are pretty short and when I switched to a 42" scale upright I had to adapt my technique by letting my fretting hand be more mobile and fluid. Other than that I would say lots of practice including running through all the scales in a key and playing along with many different genres. Not to disparage anybody but hammering out 1/8th and 1/16th notes will make you grip too hard. Can't grip that hard if you are moving around the fretboard.