Find any work you can, and concentrate on getting into a proper uni with an eye to a full degree in a subject you see a future for yourself.
x2
Hairy bummed one, now is the pivotal moment in your life where your probably somewhat unrealistic expectations regarding your future prospects (you aren't alone -- most of the latest generation assess themselves and their prospects in a fantastical way) will either be dashed atop the hard rock of reality, or otherwise you will man up and work your ass off in an unprecedented way such that you actually achieve something.
Acquire whatever job you can, but focus on preparing for the GRE's and project likely scenarios given your practice test scores (which will to a significant extent determine where you end up). Unfortunately, the content of your post indicates you haven't bothered with the requisite research -- you say you might get a CPA, which matty pointed out is a career path, you don't seem to know what you will go to graduate school for, and your plan to seek out businesses for a job makes no sense. Email/reach out to as many relevant experts and professionals in your field of choice as necessary to garner the appropriate degree of realism; such people are almost always happy to share advice with younger people.
P.S. The above is predicated on the assumption that you will indeed go to school as planned. Alternative plans might include extensive travel, or some other such adventure. While they might lead to personal growth, such plans may take you far afield relative to your goals.
It is almost certainly the case that you
will fail unless you man up this very second. Good luck!