Do you have a stay away order, and restraining order--if not AWARE which is a Domestic Violence Organization in California will help you fill the orders out and even accompany you to court. They will even pay your fees.
You need to keep documentations about every call you receive from him and dateds times and conversations--if you have not done so start and get a catalouge set up for futher calls to 911 if you have to post everything no matter how minute.
It will impress the judge as well as any police that answeres your DV call.
Remember document document document.
& prosecute,prosecute, prosecute.
Group conceling is great too as been suggested.
I worked for AWARE and DV is prosecuted haesly in California now as long as the victim does not drop the charges.
remember you are a victim but you want to be a survivor.
good luck and hang in there