I want to tell my family that staying out partying all night is not a good life choice.
Do you know what they might ended up saying about it?
I think my parents will agree but my sister is another story.
Have an open communication with your family and try to come to an understanding that you both accept. It's okay to disagree with each other as long as you do it in a constructive way.
If they all can't accept it, I think I just might end up leaving.
Well this is your family. It is very important that you are all on the same page regarding any sort of possible issue. This keeps from having any misunderstanding.