This has been a very big shock to you and to your system. This will take planning and baby steps. Please stay in the NOW, not the 'what ifs.'
Maybe first thing Monday, draw some funds out of the joint accounts and open yourself a savings and checking account in your name only.
Move what you can, as you can to have some funds available when you get ready to gind an attorney.
The job market as you know is very tight right now, and not knowing what field you were in, the only thing I can suggest is go contact California Vocational Rehab, the nearest office, who will help you in any way they can to 'brush up' on your skills, and possibly have some leads in your field, or will train you for a new field.
It will be baby steps. Since you are in California, and have been a SAHM for 11 years, the family court judges are very inclined to award 'spousal support' for a set amount of time for you to get on your feet, or finish your education, or learn a new field, etc, usually not more than 5 years, plus child support. AH, of course, will not be a happy camper.
These are things you will have to discuss in detail with whatever atty you choose.
For right now, get your own accounts opened up ASAP. Put in whatever you can each week or month. This is called CYA (cover your azz.)
You know you can come here, there is lots and lots of ES&H from us that have been through this, and although we can not be there in the flesh, we can be there in spirit. So, when you are feeling down, wherever you are, in whatever room, just picture that room filled with us folks from SR, it does help, honest.
Keep posting, the good, the bad, and the ugly, lol We are here for you.
Love and hugs,