I haven't been flying RC for along time, but I definitely get the jitters each time. What I end up doing is once I'm in the air, I get it trimmed correctly and I take my hands off the controls and shake the jitters out. Seems to help. It's the same way in the full size. I've had my private pilot's license for a couple of years now and I still get jitters while I'm doing my preflight and engine startup. Oddly, I love having the jitters because obviously you're doing something that really excites you! Isn't aviation great?! Happy flying!