-
Living in the dorms is not proof of residency since you came to California for education purposes from out of state.
-
Living with your uncle and working for him is not proof of residency.
You need a utility bill, a rent statement, CA drivers license and proof you are not getting any financial assistance from your Uncle or Parents in living here in California, which it seems you do not have so you should not be considered a resident and receive in-state tuition.
I would contact your Comminity college directly to find out their rules which could be more lenient than the rest of the California public universities. Most of the community colleges will ask for a Statement of Legal Residence before registering for classes so if you cannot prove Residency, you will pay OOS rates. It is better to get this resolved before starting classes and then find out later you owe back tuition due to the wrong classification.