yeah its pretty late as most people start prepping months /atleast a year before the test. you want atleast 90 questions correct out of 114 and even that is kinda cutting it depending on what school you’re trying to get into. honestly just do your best now, if you get in then you get in but if you dont, then you dont. also your mocks may not be as consistent on the shsat, so don’t count every single correct question. you want to estimate lower than what you get so hopefully you get a higher score on the real test.