Odds of Hanging On
Mobile development is like the Tortoise and the Hare. The good news is that you're the hare. The bad news is that if you forget to actually run forward, you're going to lose a race you shouldn't have lost.
But don't worry: Spend a few hours each day learning something new, sit up straight (no, really), manage your stress, and you'll do just fine for the long haul.