Is it possible that I got my personality literally beaten out of me[ sorry it's kinda long ]?

Ok so when I was younger[ in the 1st grade ] I was a terrible child. I always got into fights, took people things, always talking when I wasnt suppose to and such. And well my teacher would always send me home with a note for my mom telling her I was misbehaving and I would get a beating. One day I begged her to not beat me and she didn't and ever since then Ive been a good girl but TOO good. I've been shy and I can barely speak without feeling nervous or stand up for myself since the 1st grade and the shyness is ruining my life and keeping me from having fun. I'm going to try to work on feeling more comfortable speaking. So my point is since in the 1st grade I was between the ages of 5-7 and I was beaten for having a "personality" is it possible that it made me think if I have a more out spoken personality I would get hurt and that's why Im a very silent person now? Sorry if this doesn't make sense.