I am sorry to hear that the case was dismissed. Contact the DV people as soon as possible to discuss what your options are. In my state cases are sometimes dismissed with leave to reinstate them within thirty days. There are two types of dismissal. In one the state can reinstate the charges and in the other they cannot. If the charges can be reinstated the DV people can advocate on your behalf or you can call the state lawyers to find out about this possibility and what needs to be done for this option.
Hang in there. You have options. Even if the charges cannot be reinstated, you most likely can get a restraining order regardless of the status of the criminal case.