Can I yell at my mom after she told me I wasn't doing anything with my life even though I'm sixteen?
That sounds brave. Why are you mad at your mom?
Because she's so old-fashioned and mean, she can't accept anything I want to do with my life.
Your mom should be a better listener and be less opinionated about your future. You don't have to have every step of your future career laid out at 16. You need to initiate a respectful, non-confrontational conversation first -- without yelling.
First off, I do love her very much and respect her. I just feel let down that she doesn't understand my goals so I get angry.
It is okay to be upset but  you shouldn't yell. It will not make things better and it might not get you what you want.