Suggestions?

So I took my second ACT earlier this month (December) and my score didn’t move up or down at all since I took it in October. I didn’t study at all again and got a 27. Is it possible if I do a lot of practice tests for me to get a 30? Here’s my last 2 test scores
E-25, 28
M-29. 31
R-26, 23
S-26, 26

Please study.

Any study books/classes/tutors you would recommend? @theofrelord

I raised my score from a 25 to a 30. The thing that helped me the most was taking a weekly full practice test two months leading up to the test and then at least three practice tests a week 2 weeks leading up to the test date. 6 days I week I spent at least an hour studying a seperate section and going over what I got wrong on the practice test.
The two books I used the most was 1296 Practice Questions from the Princeton Review and Cracking the ACT also from the Princeton Review. I borrowed the Real ACT Redbook from the library for the practice tests only.