Is taking the SAT in October bad?

it’s been three years since i graduated high school. and i’m feeling ready to start college. but the thing is, my schedule for August is completely filled up and i’m not able to make room. i know October is long past the day the fall semester starts. so would any of you say that i’m at a disadvantage?

If you take the SAT it’ll be to start college Fall 2019. It’s a case of “better late than never”.
Study very hard though in 3 year you must have forgotten all algebra, geometry, staristics, English, grammar… - use Khan academy (online). Make a schedule for 2hours of English, 2 hours of math every day in September, and 1 hour of each in August since your schedule is packed. Plan to need a retake in November or December.
Khan academy will have you take a pre test then help you work on the areas you need to improve.
Get SAT prep books from the library.
Get the book Admissions Possible.