anxiety from family

Taylor

My parents have been arguing for almost a year straight and I can tell it's getting to the point of divorce but neither of them are willing to leave. My dad has been cheating for 2 or more years, and I found out and told my mom. Ever since I told her she has been different around me and my dad like never talks to me anymore. Now with them constantly arguing and not talking, it's getting to me. My anxiety is constantly through the roof. Its gotten so bad I'm not happy in my house but I have to fake it cause I can't let them know. How do I get it so I don't have to fake being happy around them. I just need advice, my friends don't know how to help, and I just avoid the problem. Please help