With a budget of $20,000 per year, you would probably have found most of the schools on your list unaffordable even if you had been accepted. Finding a school that fits your budget is just as important as finding schools that would be safeties for you.
At this point there is still a chance that UCI might come through from the waitlist. If it does not, schools that fit your budget probably are (i) Community college for two years, then transfer to a UC or CSU; (ii) Take a gap year, and apply to CSUs and some of the other UCs. Given the uncertainty related to the pandemic, it would not shock me if waitlist results are in some sense “different” from normal years, but whether this is good news or bad I do not know.
“Otherwise, I would have to do it by myself.”
I am not sure if I totally understand this comment. Do you mean that you have to get into a “good school” even to have the $20k budget, and that otherwise you have to pay the full thing? If you are paying the full cost yourself, then probably two years at community college followed by a CSU or UC might always have been the only realistic choice. On the other hand, if you did end up getting into UCI then I would personally argue that it definitely qualifies as a “good school”.
It is not at all clear to me whether schools will even be opening in September. Most likely this will depend upon the state of the pandemic, which I do not think any of us can accurately predict.
Life is not a race. You will figure this out. Taking a gap year is not a bad thing to do.