Improving a 32C (30E, 29M)

I’m looking to raise my composite score to the 34-36 range. I didn’t prep and “underachieved” on English and Math relative to my Reading and Science. What is the best way to improve my English and Math? I was gifted the official ACT prep book and I found 7 free full length ACT practice tests. Would some combination of these and the Internet be the best way to get where I want to be? I guess I’m taking the soonest ACT so that would be October 22. Thank you for the help and I will keep everyone updated on how I progress.

With 7 tests you have freedom to use some as untimed tests. Take one timed and score it. See what you missed and work through a second test slow. See if you can get everything right with more time. Look online, talk to a teacher, etc. to shore up weaknesses. Repeat.

On math there are probably a few skills that you either didn’t have or may have forgotten if you are now in higher math. A little work can go a long way.

English - Get a grammar book, increases score by 4 points (28 -> 32).
Math - Review concepts