Do I have a chance of getting into a good college?

it doesn't matter what your 'best subject' is. what matters is your GPA. if youre above 4.0, mostly you'll get in. 3.9-3.8 maybe. below that, NO. it seems like you have a GPA below that so sorry.. unless you get it higher to a 4.0, you aren't getting into UCSD. count out UCLA & UCB for sure. UCSB and davis are easier to get to than UCSD. UCI you can get in with like 3.5-3.6. UCM & UCR are jokes (3.0).