Note that the AB540 provision allows for three years of attendance in California, combining high school (which it looks like you have two years), adult school, and (up to two years of) community college to count, in combination with California high school graduation, associates degree from California community college, or fulfilling UC or CSU transfer requirements at a California community college.
So it is possible to gain the AB540 provision through one year of attendance at a California community college. This would necessarily require taking the transfer pathway to a UC or CSU (typically two years, then transfer as a junior). However, this would require paying the first year community college tuition at non-resident rates (about $10.8k, versus $1.3k for residents, not including living expenses and books).
I am not suggesting that you make this your primary pathway, but you may want to make note of it as an option if other options do not work out.