Work hard. And have patience. Because no matter who you are, you're going to get hurt in your career and you have to be patient to get through the injuries.
Social media is a giant distraction to the ultimate aim, which is honing your craft as a songwriter. There are people who are exceptional at it, however, and if you can do both things, then that's fantastic, but if you are a writer, the time is better spent on a clever lyric than a clever tweet.