PSLE targets

I am planning to score 260++ for my PSLE. So i have to score about 85 per subject. But after my CA1, i don't think i can achieve my target. My eng, maths and science all went down. But my chinese went up. So i think i can achieve my aim in chinese. And i also think my math's aim is reachable as my maths did not go down so much.Only from 99 to 94. But i might not get my aim for english and science. So i think 255++ for my PSLE would be great and would make me very happy.