Bad Freshman year----optometry school

Hey Guys!

I really need some advice regarding my future in college. I received a GPA of 3.1 during my freshmen year due to slacking off and adjustment issues. I will work to fix this in the future

I am a Chem Bio Major at the CoC but I will be changing to MCB with a medical/physiology track during the fall 2015 semester. I am wondering if I still have time to work hard and fix my GPA so I can have a chance at the Berkeley Optometry school?

Also, if anyone knows, does Chem 4a replace Chem 1A requirement? Thank you all so much!