IDK what to say

So I've been studying for the TEAS exam since the middle of may last month up until now. My application for the spring isn't started yet in June. but everyone wants me to take it in June by three weeks just to "get it over with" mind you, it's been a month barely but I am not done yet with studying the entire chapters of the courses. My brother, who is a computer engineer and has been struggling to find a job cause of lack of entry level and AI stuff, has been taking his anger out on me, first it's about me not taking the exam right away, then it was this one time when I got an offer from a family friend at a clinic. *would throw complaints saying how did she get a job and offers before me?!* and would spew comments like oh other people got into their program but you aren't even doing anything?? then the family's siding with him but they don't know what it's like for these programs! idk what to do.....any advice for TEAS?