DFrame that was a great post - me too!
Started out my firearms hobby with a brand new Glock23 (.40 cal) and thought that gun would make me a great shooter in a small time....WRONG.
I then moved to a Kimber Ultra Compact 1911 and developed VERY bad habits.
Good training and proper techniques with a smaller caliber gun like a 9mm go a long way. Glad I un-did all my bad practices in the first couple years. Now I can continue perfecting proper shooting until the groups get tight at 25 yards