With that sort of income you should not have this level of anxiety about your options, you should have plenty in the bank to play startup with, fail, and reenter the traditional job market having learned your lesson: with padding to spare.

Id start by seriously reconsidering your finances. If you make all the money, you call all the shots, your three dependents all on a free ride need to respect that. Furthermore- “family of 4 that I support with my income alone” - barring the case that you have an infant, your partner should be pulling more weight, too. Single income households are not feasible in California without major compromise: and that major compromise is currently occurring at your expense