I got my psat score how to improve?

thats kinda hard to get a 2100 the first time you actually take the sat and most people take it 2 or 3 times but if you have and ipod there is an app or you can go online to collgeboard.com and do the question of the day like everyday thats what i do im going to be a junior next year and my psat were like 1150 or something because i have test anxiety exspecially when it comes to really long passages + i naturally suck at math lol and i got a 35 sophmore year and a 38 freshman year,