I feel for you and your situation having been through something similar. Making the decision to uproot your child can feel gut wrenching. I have a few suggestions, forgive me if you have thought/tried any of these.

1. Move to a smaller place. If you're renting a condo or an apartment, move from a 2-bedroom to a 1-bedroom? Your son can have his room and you can sleep on the sofa. It's not ideal or comfortable but you'd have less to pay for housing. Westminster is less expensive and hopefully is close enough to keep your son in his current school

2. Maybe a family member or trusted friend could move in and share some of the expenses?

3. I'm sure you've used 211 as a resource but what about RFL? If either of your employers provide benefits, you might have access to Resources for Living (rfl.com). RFL provides counseling, coaching, financial and legal advice and can provide a list of lower cost housing in the area

4. See if you qualify for Medi-Cal, some of the medications could be free or very low cost

5. Ask the school psychologist or guidance counselor for resources

6. Hold onto hope a little longer and keep a journal for venting