If you would like to boost your scores, consider taking an ACT/SAT prep class. I took the ACT prep class offered by Sylvan. My previous scores were Composite: 31 English: 33, Math: 33, Reading: 32, Science: 31. I had taken the ACT four times before taking the class and got three 31 composite scores in a row. I felt like I could do better on the test but as one score increased, another decreased, keeping the composite score low.
The class really helped me with the timing and it gets you familiar with the questions. My final test scores are as follows: Composite: 34, English: 35, Math: 32, Reading: 35, Science: 33. My math score went down by one point, but the Academy super scores, so that is not a big concern. As you can see, the class did help me improve my scores. I believe the class was around $600, but Sylvan has $100 off coupons on their site. This may be an option to consider, but you have to decide if the cost will be worth the benefit.