Over a 20 or 30 year career, the only thing that is certain is that EVERYTHING will change. When I started flying, FED/UPS and the like didn't even exist and regionals were flying Beech 99's and Navajos. The best bet in aviation was to get on with a safe legacy carrier, like PanAm, or Eastern, or Branniff (the first one). You will not know if you have made the right choices until the day you set the parking brake on retirement day-then wait around 25 more years and see if they screw you out of your pension.

But, laddie, it IS a great ride!!