I took some classes that were not UC transferable and a counselor told me right before my last semester. I was going to take a 20 unit semester. Adding another year allowed me to take less unit and get higher grades. It also let me go above the 60 units(I went to 68) and raise my gpa a good amount(I think I was around 3.4-3.5 and I rose to a 3.6). I was mad at myself for taking an extra year because I thought that I didn’t need a counselor to help me. In the end it helped me get to a better school.