You can seek help with child support from the Dept of Family and Child Services, a County agency.
You did not provide in your question enough facts to answer you about an order for "supervised" visitation; but if you can provide more facts about
"drugs" and "partying" you have grounds for supervised visitation and/or court ordered drug testing.
Contact is the Riverside County Department of Child Support Services. Here is the link to their website: http://www.dcss.co.riverside.ca.us/. They don't deal with custody/visitation at all, but they will assist you in establishing and enforcing a child support order.
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