How to deal with administrative duties killing the research spirit? Some months ago I was promoted with a managing position inside the university (in my case, associated chair of my school, being for instance the head of admission committee and the director of doctoral studies). 
At least in my country, these jobs have a teaching reduction. However, my intention taking this position was to try to make contributions to the bad way that my university is doing right now. 

However, I have encountered a really big issue that I was not expecting:


The type of duties I have are really of ‘administrative’ nature. This means: preparing schedules of courses, preparing calendars of bachelor thesis defenses, preparing slides of how satisfied the students are with their courses. I found that there are no really ‘important’ duties to do, i.e., strategic duties.
What worries me more: Due to all these monotone work, I am feeling discouraged about my research. For three months, I arrive home every day after dealing with this administrative things and say to myself: ‘Today is another day that you both did not finish several things, and even worse, you did not have even one hour to work on your projects.’


Some months ago I was somehow discouraged about my place in this university, but after taking this position I feel that I am going directly to a disaster. Either if some months ago I was a little tired (maybe burnout), I had still some energy and feeling happy making research. But now I had arrived at a point that I have started giving a deadline for this situation (December 2019), and if this does not change, start looking for something else outside academia.

What do you recommend to do? I have considered to talk with some senior professor here, and even to quit this administrative duty, but the thing that worries me more is that nowadays I have lost the passion I had for research that make me sense to stay at the university.
First, I absolutely do appreciate your disaffection with the situation.

I would wager that some of your disappointment is due to pointlessness of some of the administrative activities, or the pointlessness of trying to "over-perfect" things that only need to be "good enough".

Also, some administrative problems will never be solved/resolved, but only "stayed", and require a certain (perhaps small) effort forever. Expending more effort at this moment will not solve those problems. Staying up late will not solve the problems. They're like laundry or dishes that just have to be dealt with, regularly, and "doing a great job on laundry" this week will not really reduce the laundry burden for the next week.

But, yes, these administrative things are very important to keep things going. So there is some exercise of thought to see how much of one's motive force to allocate to "routine" tasks, etc.