Hey. I’m an international student. This january i appeared in sat 2 physics test. I had prepared from both barrons and princeton. I had gone through them thoroughly and also took their tests. However i failed to score well and only managed a score of 620. But during the test i felt as if im doing well and knew what the question was asking. How do i improve. Please help. I reappear this may and i am desperate for a good score.