Increase my SAT score?

Well now that I have abandoned the premonition of getting into any of the Ivies. I have narrowed down my choices down to two great schools, NYU and UC Berkeley. I am currently a Junior and my SAT score is 1180/1720 it's not a great score, so I want to ask for any advice on how to bump my score up to a 2050 and also what are the decent scores for these schools.