How did a social worker become involved? This person could be an ally. Right now the violence seems like it's the biggest problem, although it might be the JW stuff that is aggravating these violent tendencies. A social worker will be more interested in violence and violent cursing than in the JW stuff, so keep in mind her perspective.
I thought it was telling that you said you were TIRED. It speaks to desperation. Please know that you can leave the religion, but doing so can be tricky and take time. Stick around here and read and learn and don't do anything desperate that you might regret. Have a plan.