Woah There! Don't panic!
The answer is NO you cannot use the same corrections as in an 8month old.
I will give you step by step advice on what to do for her. Anyone else reading this with a similar problem, please e-mail me with details as this advice is NOT for you. It is just for this specific puppy and might not work for you at all.
Here we go:
Your 'confrontations' must be very short and to the point with (and this is important) IMMEDIATE forgiveness.
1. You must try hard to avoid the puppy running away from you (as being faster than you is very rewarding to the puppy and stays well in its memory, solidifying the unwanted behavior). To do this you must calmly kneel down and then do your best to move your hands FAST to catch hold of ANY part of the puppy. Do not hurt the puppy at all, just grab it and GET BITTEN if need be (3months of Malinois teeth can't do you much harm).
Don't yell or even scowl at the puppy just calmly concentrate on catching it real fast while ignoring its reaction completely.
2. Take 'HER' stolen object by opening her mouth and NOT by just pulling on it: Put her in your lap, grab her muzzle with your left hand, thumb and middle finger pushing on her last teeth on either side to get her to open up. Then remove object with right hand. You are still IGNORING her reactions.
3. Get up and get her a toy you DO want her to play with.
Do this for the next month whenever she is in such a situation and if you are FAST and she NEVER again gets away, she should stop her growling and stealing too! And her running from you!
This is a shy puppy that is panicing into aggression. She needs a mommy not a trainer at this point and you would do well to act like her mother for another month before you start to take her seriously at all. Act like you are so much 'bigger' than her that you don't have time to get upset with her growling. Act like all her "fussing and fighting" just went out the window. Dogs get embarassed by that and it is a correction in itself -especially when the pup is young and sensitive.
Chances are you were actually intimidated by her growl in the past enough to leave her be -or gave her that impression as she hid out of your reach.
This was what she wanted and taught her something:
"Ahhh! A growl will keep the lady from scaring me!"
For the next month ignore the growls and work on socialising you're puppy.
The fact that she is afraid of people is MUCH more serious than her growling at you. You have very little time left to make a major difference in her general temperament (about 1 month) so get a move on <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Take her out alot and have many very calm and sweet people come over often -who should never pressure her but should always have a treat for her if she decides to come closer to them.
Dogs are not our whole life, but they make our lives whole.
--Roger Caras