I need help

I'm so sorry you're going through this! My advice to you is to annoy the heck out of both your caseworker and any counselors that are/have been on this case. It sounds like your kiddos have serious behavior issues, not to mention the recent trauma of being moved from a home that they'd been in for quite a while. You should be getting support and the kids should be in some sort of therapy. Especially since this is meant to be a permanent placement. Parent-child interactive play therapy really helped my husband and I bond with our 3 year old. It also has helped us work with him on specific behaviors.