i feel like quiting

i just feel like quiting....school.
shocking, but its really stressful and alot of year 11 signing out of school and is goin to tafe to study.
i remembered before i started year 11, dad told me i don need to go back to year 11 if i wan to and i can go to tafe and study and u can work. i thought i can manage but it just gets harder day by day.
everyday the teacher just give u more homework and more assignments and if we don pass up on the due date it is said we're not filling up the requirement and need to do year 11 again.
right now, i'm busy as ever. i'm trying to work more hours to get more money to save money to go to malaysia. and to top that, i have lots of assignment that i have to pass up before i leave to malaysia and i have an maths exam coming this monday. and i have to do 2 work placement for my entertaiment and hospitality course.

i just feel like quiting..but i know i can do it but i just have to be more tough. don wanna dissapoin my parents cause if i don finish year 12, i don have the qualification to go to uni...thenn what am i suppose to do wit my life?? i just have to try my best.