Well I know you don’t go to public school in North Carolina because it’s required here for all juniors whether they are going to college or not.
I’d give it a go and take it at least once. My D22 took it once and was done. Her score was fine for the colleges she’s interested in (not Ivies). She didn’t do a lot of prep, but did a little bit. You might try a practice test at home and if you don’t like your score you can see if you can find time to prep more. But the first go 'round might be good enough. Better to have a test score that you can submit if you want to than not have one at all and have a school that you love that requires a test score.