These sitches are not easy. DBing is tough. Detachment is hard. That is why we call it a process. Just keep working at it.
But please do not let her talk to you that way. "Are you white trash?" respond with "I refuse to discuss anything with you when you are being disrespectful."
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712