When you go to the driving range, concentrate only on hitting the ball straight and to a target you have picked out. Pay no attention to how far the ball goes.
Range balls, especially ones that you can tell are old, won’t go as far as the ones you play golf with. If you try to get the distance from a range ball that you think you should get, you wind up changing your swing to put more oomph into it, and ruin everything you came to the range to accomplish.
Remember, straight and accurate. That’s all.