Perhaps it would help to look at your job as a means to an end. You have expenses, needs, etc., that must be addressed/met. The pay from your job affords you the means to meet those needs, but that ability comes at a price: the time you would spend writing.
Shelter, food, water, and the occasional creature comforts are a must. But so is this need to write — which you do well. The key is to find a balance. You can do that. You do it well with words, you can also do it in life.
Congratulations on the job, by the way.
(Besides, just because you have this particular job it doesn’t mean that you’ll be doing it for the rest of your life. This is just a phase. Who knows? You may find another job before long that’s more to your liking.)