ACT prep during the school year

I am an entering junior in high school and I will take my first ACT next month (September). I’ve done prep and got some books but I feel like I won’t get the score i want (My ultimate goal is a 32 or 33) and on my practice tests I’ve been getting 27-29 scores. I know I will take it more than once and plan to take it around February or March (When the school does it). I will be see my weaknesses after my first ACT and work on those throughout the school year but will I have enough time to get it up or the materials for it? I am taking 2 AP and 2 honors classes this year