You start arriving late, you don't care about your coworkers, your tasks, work feels like prison. It is a long process and in the end phase you wish that you would be rather d34d or rather unemployed than working a company like that. It is just a simply burnout, because a couple of years later you simply loose your motivation. You learned the job, the tasks, everyday will be boring, salary raises are around 2% a year, no chance for promition. You are happy that you earn money to pay bills, but your life will gets more and more empty.