2 C's in Junior Year. What are my chances of getting into low to mid tier UC's?

By the way, thank you to those of you who took the time out of your day to read/respond to my post. It really means a lot. <3 I’m just really stressed because I go to a semi-competitive school and seeing my friends and their GPA’s adversely affected mine. I never really confronted my teachers about my situation and in retrospect, that was the biggest mistake I could have ever made. I didn’t even tell my friends about it until months after. I never really opened up about it until it was too late. I ended up not consistently doing my homework and missing school during my freshmen year and I never really transitioned into a normal life until the end of sophomore year since my father was the only breadwinner in the family, so we had to make drastic changes. I just don’t know how to convey this to the UC’s since their primary focus is GPA.