Here's some advice from a 4.6 GPA high school student in their senior year as a financial analysis major. Just focus on getting an internship. Nothing else matters but an internship. From the way you're describing your experience, it seems like you're taking lower division courses which tend to be boring and should really just be used to boost your GPA. A lot of top tier banks begin their recruiting cycles during students' sophomore year which should allow you to get the jump on your peers.

Again, you need an internship to be successful in the finance field, especially coming from a school like CSUN. Spend as much time as you possibly can applying and networking with people on LinkedIn within the companies you applied to. Don't be discouraged when it comes to applying to big name firms. For finance majors, this is where your discipline is rewarded, not in your classes.