i failed a prerequisite and am automatically disqualified from applying

long story short but my dad was diagnosed with cancer this year which made me want to pursue a career in nursing. my dad is the sole provider so when he got sick i had to worry about bills (which fortunately up until this point wasnt something i hadn’t had to worry about). because of this and other reasons, i decided to pursue nursing since i wanted to take care of both my parents financially. so when i was taking my prerequisites, i made sure to give it my all on all my classes. even when i didn’t feel like it, when i was at my lowest (because i was also severely depressed and going through a heartbreak), i still gave my schoolwork my all because my school has this rule where if i get anything less than a C- on a prerequisite, i am automatically disqualified from applying. i was taking 5 classes this semester, all A’s, one B, and to my surprise a D. i received a D because i missed 2 quizzes which count for 30% of my grade. of course this is my fault because i forgot but it was an honest mistake. i worked so so so hard and all for it to be for nothing. it slipped away at the tip of my fingers. I thought because i had an A on every assignment (including my midterm and final) i can at least end up with a C in the class but i ended up with a D. i poured my heart out to this and it’s gone. i did this for my parents and i couldn’t do it and i just feel so horrible. i emailed my professor and advisor and even the dean of my school and the lack of empathy i receive is insane. no one cares which is so sad. i pushed back my graduation date for this. im in my early 20’s and all my friends graduated and are far into their careers and i haven’t achieved anything. i feel completely alone and worthless because i wasn’t good enough to pass. on top of dealing with the heartbreak and my dads cancer, i just can’t anymore. the thought of transferring to another school is so draining because i would have to resend all my transcripts all over again. i am planning on going to a community college instead of the 4 year university but i did my calculations and by the time i graduate from the 2 year i could’ve earned my bachelors instead of my associates. i just feel so horrible and sick.

UPDATE: I actually ended up appealing the grade with the dean of the class department and I explained my situation to him and he let me retake the exams for partial credit and I ended up with a C for the class. I also got my acceptance into the nursing program 3 days ago! if you’re going through something similar maybe try appealing with the dean. look at ur schools process for appealing a grade.