Facebook is daft. Worse than that, it's a superficial, skittering-on-the-surface, self-promotional tool posing as "social interaction." I did it for four months on the urging of old college classmates who said that's how they communicate these days. But they weren't "communicating," they were engaged in telling me (and their "friends") what cookies they baked today, what they planned to watch on television, ad nauseam. Advertisements for themselves. Pure and simple. A personal diary kept for public consumption. Tacky.
When I went into a coma from boredom and announced my Facebook departure, they acted as if I were moving to some isolated iceberg off Antarctica. I said, "well, for godsaakes, just email, text or phone me." Two did. For one week. The rest is (blessed) silence.
Facebook is a stupid distraction in a world where people regard attention deficit disorder as a normal state. Boredom reigns out there. My advice is to walk away from Facebook and get to the piano and practice.