Aaah...the the most feared, loathed, avoided tests of the century: the PSAT, SAT, and ACT.
I am here to tell you that you should not let these tests overpower you. A bad first score is not enough to tell your potential. You are capable of improving leaps and bounds, perhaps hundreds of points.
Take my younger brother, for example. He took the PSAT his freshman year with no prior exposure to the test and received a 153. He was not happy with his score, so I told him he would have to practice greatly to improve.
With my help tutoring him in math and writing, he was able to improve his SAT score to 1820 his sophmore year. That is a 290 point increase! Using the big blue SAT practice book, he took many practice tests to help him get comfortable with the test format. I went over the questions he got wrong, so he could learn from his mistakes and not make the same mistake the next time. The SAT Question of the Day was another helpful tool he used that was vital to his success.
I can only imagine what his scores will be his junior and senior years as he takes action to improve his score further.