After you’ve hit your tee shot, especially on the first hole of the day, you still need to keep yourself loose and flowing on your way to your ball. Make sure you’re keeping your wrists moving, your head moving, perhaps even walk a little quicker than you normally would to your ball.
Beyond getting your heart rate up and activating your body, start visualizing your next shot — picture the distance and the flight — because your brain hasn’t been doing this since the last time you’ve played.