As-Salam alaykum dear sister,
I’m sorry to hear of your marriage problems. It is not a good situation at all. If your husband is violent you need to take the children and leave. Please do find someone you trust to help you with this if you ear you cannot do it alone. It is not a healthy situation for you or your children, and yes, seeing a violent relationship between their parents will affect them as will being being screamed at and neglected will. Please do find a counselor in your area to address your depression and stress, it may be due to the abusive conditions you are living under. Please sister, also seek out parenting classes to help you relearn how to treat your children. Your local Masjid may be a good source or the counselor that you will hopefully see insha’Allah, can direct you. In any case, please do ensure your safety and your children, and leave. If you need help, please do google local domestic violence shelters, they can help.
You are in our prayers, please let us know how you and the children are.