Some testing centers will let you take a simulation ACT or Sat to see which one is better for you for free. Check those out BUT a 32 is a very good score so I think you are taking the correct test.
My sons tutor used this book a lot and it has great explanations https://www.manhattanprep.com/college/act-5lb-book/
Besides studying try to do several “real” times tests in here like 4 weeks before right up to the week of tests. One a weekend. Take the tests the same time each weekend. Wake up the same time. Eat breakfast. Maybe go to the study room at a library so it’s quite. Take the same breaks and so on.
Getting 33/34 is the sweet spot for many colleges. Your only a few more correct questions away.
One key for my son was he studied his strengths hard and improved his weaknesses,if this makes sense.