This. I saw my kids’ friends have weekly test prep tutoring all the way through HS. My kids spent a couple of weeks (maybe 10-20 hours total) self-studying with Khan academy with 2-3 online practice tests and were both one and done with more than adequate scores. We did these sorts of tests cold 30 years ago. Don’t get obsessed over what in the end is only likely to be a marginal difference in score.
Do I worry about my youngest, who doesn’t care about much other than video games? Yes of course. But I’m not going to force him to do things he hates for the sake of a college application.