While deciding to quit, you may want to take a hint from your Mondays. On a lighter note, all Mondays are painful. However if the feeling of drudgery comes to time and again, you need to think carefully about your willingness to carry on. At the end, every thing boils down to your your happiness, overall satisfaction, and motivation. There are a host of factors at play – your personal life, your expectations from workplace, work life balance, compensation, managers, workplace etc.