I HOPE you can get into USC with a merit $ scholarship, BUT since you need help in paying for college you need to cast a wide net, and you cant afford to fall in love with any one college. Instead you need to look beyond USC and find colleges that GUARANTEE full rides or full tuition scholarships. the following is a lost of colleges that will pay you to go to college. Many of these colleges will offer the same scholarships to students with very hi ACT scores, such as yours
http://nmfscholarships.yolasite.com/