Reddit reviews The Official ACT Prep Guide 2019-2020, (Book + 5 Practice Tests + Bonus Online Content)

I went from a 31 to a 34 in October. You can do it!

If you don't have a prep book already consider getting this just for the practice tests - it's what I used. I'm not sure on specifically geometry or if you were looking for online resources sorry

For the 26 I didn’t study more than a week out for any of them, but for this last one I signed up for a prep class and started studying about a month and a half before the test. Every Saturday I’d take a practice test from the ACT prep book then go over what I’d missed the following Monday and Tuesday and try to figure out what I did wrong and I’d rework all the math problems. I also used the 5 lb. ACT practice book to get extra practice on the types of problems I was struggling with.

And do you mean this book? The Official ACT Prep Guide 2019-2020, (Book + 5 Practice Tests + Bonus Online Content) https://www.amazon.com/dp/1119580501/ref=cm_sw_r_cp_apa_i_iO04CbTNEGN6W

ACT Redbook

The Official ACT Prep Guide 2019-2020, (Book + 5 Practice Tests + Bonus Online Content) https://www.amazon.com/dp/1119580501/ref=cm_sw_r_cp_api_i_UJWvDb2TC6083

I found it was super helpful to take practice tests because it helped me get faster (especially on the science section), and figure out what I needed to go over more (especially random topics on the math section, my weakest subject too). As I took each practice test, I noted which questions I wasn't sure about, then after the test I went back and made a spreadsheet containing all of those problems, the problems I got wrong, and what the topic of the question was. Then I looked for patterns (basically what I was consistently getting wrong), and studied those topics. Watching Khan Academy videos for math was helpful if you get bored with your textbooks. I used the official prep book, which I liked. I also tried to simulate testing conditions as much as possible. Good luck!!

It's this one.