Do Multiple Things. Be Your Best.
But the thing to understand here is that it takes years for you to be good at anything. Yes, years. After a year you might feel that you’re really good, but more often than not that’s just newbie arrogance, which will of course, pass as you learn more.
It’s not a linear scale. If you want to be good as a digital artist, an app designer, and a film editor, it doesn’t take three times the number of learning years.