'Knock, and the door will be open to you'

I am feeling so much better now. One thing for certain, I don't understand office politics. I just told myself that I would just get into the office and do my job at my level best. After work, go home and continue on my studies. Is that so hard to achieve? Sometimes it is really hard to do so due to disturbances. I think I should take it easy when I am working. Otherwise I will not be able to concentrate in doing my studies. Don't you think so?