That's a great beginning score, but also remember that you have other options available, like the SAT's if you try to get a higher score on the ACT and just can't seem to do it.
Hopefully your math score will increase. I found myself in the same situation where I had not yet learned all the math on the act and got about a 28 too. After 1 more year found myself at a 35 for the math. Depending on your math class, if I were you I wouldn't take the ACT again till 10th grade as you will develop your test taking skills and score even higher next time.
