@dasanixxx First, I urge you not to fall in love with one particular school. There are countless places where you can receive a wonderful education. No matter what you do, no matter what your scores are , no matter how awesome your ECs are, you still have a tiny chance of getting into UChicago.
I second what others have said about trying the alternative test. My D1 did much better on SAT then ACT and D2 had the reverse experience. Colleges do not care which test you take.
No college will care about yout PSAT score unless you are a NMSF. Don’t worry about them.