Act prep help

Okay so I took the act back in April and didn’t prep at all and scored a 20. I would like to get my score to a 24-25. I have 7 weeks before the next test date, what do you think is the best study method for me and how can I use my time to its fullest. I’m a senior in high school and I get out at 12 everyday so I have plenty time to study each day, i also have the red act guide and a online prep scholar program. what type of routine should I use for the book and what is the best way to use my time, so in October I can get the score I want.