CC vs UCI difficulty of courses and PSB program

I’m hoping to transfer this fall, and am wondering what the rigor of courses will be like. I have a 4.0 at my CC, but it’s taken a lot of work. I want to go to grad school after my BA so I need a competitive GPA, like 3.5 plus. I would be transferring into the PSB program. I’m new to research, what we do at CCs is more like practice, and I’ve not had any intense statistics courses just basic. Please tell me anything, your personal experience transferring, whether you are a psychology major or not, how you like the PSB program etc Thanks a lot !