Is your husband nice to the kids?

First, you should share custoday with your hu*****and no matter what, for the benefit of the kids. If your hu*****and is nice to the kids, you can consider letting your kids living with your hu*****and. You can take care of them during weekends and one or two days per week.

"上法庭，我会一无所得" won't be true. You are entitled to the income during marriage, children's (partial) custody.

You should talk to a laywer.