I do 1 practice test a week
But I take the ACT in a month
But thank u 4 ur suggestion.
You just have to understand how the ACT works. Going over what you get wrong helps, try and figure out how they want you to get to the right answer- you’ll find that the majority of the questions are all similar in how they make you think. If you feel like a robot, then you are good! Went from a 29 to 32 and only took twice (once before summer and then again after) ALSO, to everyone else possibly reading- standardized testing gets easier the longer you wait, aka try taking it end of junior year and beginning of senior year for your best scores. If you have the ability, though, you can take the PSAT and ACT beginning of junior to test the grounds and see where you are to start.
yes you can do it bud, i increased sat score from 1150 to 1320 with only 1 month preparement 
IGNORE NEGATIVE SC**S , DO YOUR BEST
I got a 21 my first practice test. After studying a tremendous amount consistently, I got a 29 (30 superscore). So yes it is possible.
How did you get a 28? What did you do as far as studying?