I guess if I had to give only one bit of advice, it would be SA is likely the single most important thing to work on after you've got the basics. Over the years, I've found every single improvement I've made to my game has resulted from noticing more of both what my plane is doing as well as what my opponent's plane is doing.
Concentrate on judging how fast the bandit is going, whether he's gaining or losing speed, whether the angle he's coming in on allows him to get a shot, or if you're in the clear and can start the transition into your next maneuver. Compare films and watch what it shows versus what you thought the situation was.
If I were allowed more than one tip, then it would expand to gunnery is critical, so is flying 'smooth'.
Wiley.