I'm 18 and my family is going through hell right now and I don't know what to do. My dad(41)was diagnosed with a terminal illness last May which is when everything started. My mom started cheating on him at this time and I found out about it. My sister(16) found out about it about 6 months later. My dad has turned into a complete ass. All he does is yell obscenities at us or call us vile names. I told my mom we knew about her cheating in March 2017 and she said she'd stop. She didnt. My brother (14) is thankfully ignorant to what my mom is doing but my dad is the worst to him. Always yelling and calling him very mean names. Names a 14 year old shouldn't even be hearing and will not stop. We have tried telling him he can't talk to us that way and everything else and he just says he will do what he wants and we are the ones at fault. My mom continues to cheat on him. He keeps calling her bad names and threatens divorce constantly but us kids are stuck in the middle of it. We can't get away from the constant emotional abuse. i don't know what to do. As the oldest this all falls on me. I need to get my siblings away from my parents. I don't know what to do.... Someone please help me..