Can my score improve?

<p>Okay, so I'm a sophomore & received my ACT results last week after preparing with about 4-5 practice tests. Ha, I had an inexplicably atrocious score with a 30 composite: 29E, 31M, 28R, 31S. My goal is to get around a 33-35 composite during my junior year. Since I'll have trig next year, I'm confident math will improve. Science is iffy, I'll keep working at it, but I got lucky with the genetics and chemistry on this test. Basically, what I'm wondering is if I keep taking practice tests, do I stand a reasonable chance of increasing my score to a 33-35? Also, what month(s) would you suggest I take it on?</p>