Sorry, old duffer, but I can't recall a "...really gross mistake..." during my flying
They wouldn't have let me fly the Queen if I had....
Concerned? You bet.
Still learning? All the time.
Still make crummy landings occasionally? Yup.
Having fun? I try to.
The sort of idiot who, with zero prior jet experience jumps straight into the left seat of a 707 with 32 training hours and arrogantly regails everyone about his superior flying skills, absolutely not.
(Apparently the airline was so great that it didn't trust promoting from within
)
"....there's nothing so becomes a man as....humility..." (Henry V.)
Some people never learn, blah blah