I want to Quit my job?

Your goals seem misguided. If you don't like your life, change it. Study for those upcoming exams with the free time that you do have, so you won't be stuck as a porter. If you're an adult, you shouldn't rely on your family to take care of you just because they will. I wouldn't quit your job before you find another, particularly in this economy. I work 2 jobs that I hate, and go to college full time but I do it because I don't want to be working jobs I hate forever. So suck it up and make small sacrifices now that will pay off in the long run. Good luck.