ACT is easy, not even worth practicing
Okay. Yes, it's pretty easy. But even so, practicing is good. I started at an average of like 31 and ended up with a final composite of 35 from a stuffload of practice. It's all about practicing time management. My best advice is to bring a watch and know exactly how long each section is, in both questions and minutes.
Also if you're like me and stuffty at reading, learn good methods of deconstructing their reading prompts quickly. The faster you can accurately read and summarize the articles in your head the more time you're gonna have to go back and check yourself at the end. I just hate it because they've gotta choose topics that are weird af so you'll have no clue what you're reading lol
And for reference I just went to barnes and noble and bought one of the ACT practice books and went through the entire thing