hi,

Like Raydee said "small stick movements is the key".

Make sure there is no "wind" on the sim too.

I do not know Realflight, but try another heli, one might be more forgiving than another.
And alot easier to get to know the controls.

I have tried FMS Sim( the free one), and that one has 3 or 4 different helis. I have noticed
one of the helis is a real bear to handle if trying to learn to hover. And others practically float
around without much correction.

Keep at it, dont give up. The feeling of accomplishment when you can hover is the best.

small stick movements, no wind, try another heli, DONT GIVE UP.

hope this helps....Bill