What are your UC GPA’s? (UW, Weighted-capped, Weighted-uncapped) GPA Calculator for the University of California – RogerHub If you want an undergrad business program, add to Irvine and Riverside to your UC app.
The statement about paying for school with loans and scholarships is a little concerning. Most significant scholarship money comes from the schools themselves. And you can only take $27K in loans, total over four years, in your own name; any additional would be parent loans. You need to have a discussion with your parents about budget and acceptable amounts of debt.
You might take a look at Emory - it has a good business school with an undergrad business program, and does not consider freshman grades. But, it’s in the same cost bracket as the other expensive private U’s you’re considering, which could be too costly.