i use a dexcom 7 to monitor my #s which gives me a real time view so i can be more careful. my doctor lets me adjust my own insulin dose within reason so it helps. most of the time i'm under control but sometimes like others i have issues up and down.
i fought my doctor about using insulin 7 years ago because i didn't realize how serious it really was. my averages were 300s to 400s and too many 500s, now i realize it was very dangerous.