Personally, I would say that I share social traits with my aunts and strange attitudes sometimes. For example: In nature I’m very extroverted and don’t think about future consequences. That wouldn’t be a good thing if I actually were to confront the real world without some sort of guidance or chaperone. Also, I like art such as painting and drawing. It’s a passion my mother does not share with me. I know of aunts who have my same passion and have a wild-extroverted nature.
No they aren't proper to use in writing class they are considered slang. It would show your teacher that your not interested in sounding educated and proper. Hope this helps!