There is no work that is of a low category. You should always do things which help you to grow and make you a better person. The job you do may not be doing exactly that and hence you are getting weary. This reason can be counted as one of the most commonly found reason to quit a job. You need not ask someone else on how to quit my job. You simply have to find a path of your own and walk on that. That will keep you contented all your life. Try your hands at working over the internet and see how things change in your life. Find your own reason to quit a job by working for yourself and for a company.