Fighting is no point!

Between my friends and me fighting and then to me and my sister and her friends fighting. I am just getting tired of it. It's like when is enough. What age do you stop fighting? is it never then i am tired of fighting. Now i have to be up by 6 this morning and i can already tell that i'm not going to get any sleep which means to night i will be taking a nap. I know that there are things that we need to work thou. Both me and my sister need to work on our communiation and knowing when to give us space. It's like walk away. People need to stay out of our fights and just lets us work it out. Just know to step in before it gets physical. Like know that many of us are going thou alot and that's why it so stressed out. Like i'm stressed out.