Nerves
Brian B,
You are a better pilot than you think you are! The worst thing you can do is get too relaxed with these birds, to let them take you somewhere your brain hasn't been five seconds earlier.
You haven't crashed a model jet yet, so don't underestimate your skills. It is perfectly normal to have some jitters while you fly, especially on approach and landing. It is far more difficult to land one of these little buggers than it is to land a real one. You have no airspeed indicator, no AOA indicator, no glide slope, no VASI, not even a decent frame of reference.
Every time I've tried to relax landing my HotSpot it's been a lousy approach, landing or both. I have to be way ahead of the thing, brain going a million miles a minute on approach because I fly out of a short grass field that requires a tight turning final that has to be right on the numbers every time or I have to go around.
Don't let the great flyers in this game fool you, they may look cool and talk cool but they are either working very hard to get a good landing or have made so many of them (ie. practiced more and harder than you and me!) that they don't have to think about it any more.
You're doing great! Just remember, keep thinking, don't relax, don't give up on the airplane! Keep practicing! Before you know it you'll be the ace of the base!