Pick one thing and get really, really good at it. One skill, one ability, one habit, one practice. Stick with it for years.
Tackle the obstacles, build through your weaknesses and up your strengths.
Grow in knowledge, depth of insight and discernment in such a way that you live and breath that one thing.
Learn it. Live it. And then pass on what only you have to offer - what you've grown in your heart, mind and body - share it in such a way that others benefit and your soul is engaged with purpose.
Pick one thing and grow it.