I'm a father of 2 girls, 5 and 8. The mother and I are separated due to her infidelities and meth addiction. The kids are mostly with me and have been for some time, but when she feels like having the girls, I can't stop her. The kids need their mum but she is now dating a drug dealer who lives with her and they are always high. The other day when she picked them up, there was a machete in the back seat of her car. How hard is it for me to have the kids taken away from her and have sole custody of children? What can I do for immediate action? I have text messages from her threatening me with violence but nothing has actually happened.