It depends if you are just enrolled, enrolled and auditing, or enrolled and preparing a degree. If you do not have a transcript with grades you’re not usually considered a transfer (US colleges want to see a transcript) and some universities actually consider that if you have only 15 or 18 credits when you apply you should apply as a freshman.
This however doesn’t apply to California publics (you need to apply during a specific time window and the semester you complete your 45th-60th credits). In addition, housing costs are extremely high there, so that CSU tuition+housing+general cost of living would unlikely be under 40k.
Could you un-enroll? I assume the semester is not over yet.
Have you applied anywhere before?
Where did most classmates from your international school go? What type of program did you prepare (IBD, A levels?)
Australia may not be “worth it” in general but for you specifically, offering recognized degrees in English with a clear cut admission system, it’d be a stark improvement academically and socially based on what you said.
In Canada you could start in an English-language Cégep (transition college, required for all Québec students, much cheaper than university) and move to your major at a Canadian University. Or, if you have IBD/A level scores, you could apply straight up to university programs. Some have scholarship applications at the time of application (Waterloo) some after admission only (McGill).
January intake at Scottish universities (not all offer this and not all programs) have Nov1 or Nov15 deadlines so if you want to start Jan 15 2025 there you need to move fast.