My mom and sister keep fighting
my mom is 47 and my sister is 24. my sister lives somewhere else and is visiting. my mom is getting upset really easily and my sister is too and now they're screaming at each other in the living room! I've had enough! every time they get mad they take it out on each other. we all have a very close relationship so when they're happy they are really nice to each other. what can I do to stop this?