What would you say if you do the same work from last three years wouldn't you scream and say how tedious & boring isn't?

It depends on the mood of person and lifestyle that in which kind of environment you can work with pleasure and interest if in your surrounding your gathering and people are well sensible then you may not be tedious but if your surrounding always try to vex you then you will get replete of them and a bid to leave.Secondly if you are having a lot of responsibilities on your shoulder towards your family and you don't have an extra place to work then in compulsion you have to go through beat the same drum till that time you do not get an other suitable job.

If you think your work is boring then find another work that fits and a work that you know it can make you happy. Find or look something interesting or different.

Try to find another chill job. blessings 

If your responsibilities are homogeneous or you've had the same duties for the entire time you've been at the company, ask your boss if you can alter your workload or the kind of work you currently do.

Maybe the problem isn't your work. Maybe you're just exhausted and you don't have the energy to do your work, so your boredom and your energy become a vicious cycle. Eating and sleeping right can help a lot, but performing a few quick exercises can help get your blood moving and wake you up, too. And, if your boss will let you, a standing desk can help energize you as well.