There is an organization in Riverside that may be able to help you if you qualify. The Inland Empire Latino Lawyers Association assists in cases of family law, including domestic violence cases. They assist low income clients and if you qualify they will assist you at no charge. Best of luck!
The information you obtain in my answer does not, nor is it intended to, create an attorney-client relationship. You should consult an experience attorney who has knowledge of all the particular facts of your case before making any final decisions.
Yes - visit the Superior Court's Family Law Clinic. Advise them that you are a victim of domestic violence and that you need a temporary restraining order and need to file an OSC for child support. You should do so immediately.