It happens. 10 million, or more, annual airline flights.
The majority of the injured, or everyone injuried, didn't have their seatbelt on. That's the number one thing you can do to protect yourself.
Did it damage the airplane? No.
Big hole that was reported? Turns out it was a trim panel that was displaced.
With six hours to go they overflew, with medical advice, approved medical facilities so there has to be some balance given when considering the extent of any "injuries". Injured? Yes. Need immediate, rapid, or quick medical service from a hospital? No.
More people die choking on food, but most don't fear eating. Hopefully you can put this in perspective and enjoy your trip.