CSU to Private school OR CSU to CC to UC

Nothing’s wrong with CPP, it’s just not what I expected from college. So far, I have only had one class that I truly felt like “This is college!” Most of my classes felt like I was still in high school and made me regret not trying hard enough in high school. I wanted to try apply to other schools, but I don’t really know what my chances are and how likely I will be accepted.
Thank you for your advice I will certainly keep it in mind!