Don’t worry about it. The PSAT doesn’t matter.
For purposes of admissions to colleges, including the most selective colleges in the country, a student’s PSAT score mean absolutely nothing. It is never considered.
The only thing the PSAT is used for is to determine who qualifies for National Merit semi-finalist status. I can hear you already. “So, that is what is important to colleges.” Nope.
The majority of colleges do not care if a student is a National Merit scholar or not. What colleges care about is what are your actual test scores. SAT or ACT they don’t really care. I have seen many students with very modest PSAT scores that scored very well on the actual SAT or the ACT. Those students have almost universally done well in the college and BS/MD admissions process.
There are some colleges, particularly those that typically don’t get very many students that score well on the SAT, that offer significant financial aid packages for National Merit finalists. But the vast majority of highly selective colleges give either no extra financial aid for National Merit finalists or at most give $2,500 a year.
If you are looking for significant merit money and are willing to consider some less selective colleges, then by all means try to do well on the PSAT. Otherwise, don’t freak out about it. If you do well, great. And if you don’t do well, so what.