How to pay for college with no financial aid OR help from parents?

It’s okay. But now on, you have to adjust your thinking. It’s the cold, hard reality.
Earn the $280 back and set them aside.
U Wisconsin Eau Claire has a good Honors College BTW. UMN Morris is great for CS and has a “private college” feel.
UMN Twin Cities is really good, and has reprocity so it’d be the same cost as U Wisconsin.
Those are universities you can invest in applying to.
And if you leave U Wisconsin, look up “my children’s college” for the complete list of full tuition/full ride list.