Need an advice for October Study Plan

Could anyone suggest or link me a study plan for taking SAT Bio, Chem, and Physics/Math2 on October 7? I’m afraid that finishing this summer before classes would lead me to forgetting much of the details by October. I also have the November date available for retaking if needed… thanks!

P.s my classes start on august and i’ll be taking inorganic chemistry, gen physics, and anatomy… also, im taking the ACT on September