Need help deciding on a school

Hi I’m a transfer who was set on attending CSUN for computer science. However recently I got off the UCLA waitlist for applied math (I feel like I might change that tho) and now I feel like CSUN might not be the best idea. I’m torn because I have only three days to decide and would like some advice. I plan to not attend graduate school, so I don’t know if that plays a factor or not. I’m not too sure what I want to do after I graduate, but I know I’m interested in math or data science. Financially, I think I might have UCLA covered completely, but at this point I just need some general advice when picking a school.