Since SAT’s are about the best score don’t worry about testing early and not scoring as well as expected. My son took them twice soph year. The second time he got the score he would need for HA’s with baseball.
In between I paid for one on one tutoring. The tutor didn’t make him smarter. The tutor helped him prepare better and deal with the test better.
Sometimes it’s about preparation and dealing with the test rather than smarts. My son’s IQ is 10% higher than his older sister. I expected his score to be equal or better than her 1300+. The first time it wasn’t.