What are you recognized and rewarded for?
How does what you are supposed to be doing and get paid for, stack up against the other stuff that just creeps in? Task creep as its known happens to most of us, but in excess it can stop you from optimally performing,make you tired and stop you from getting to your real work.
Think about what your job is supposed to be as defined by your boss, your year end review criteria and the job spec and then think all the other things that happen 9-5 beside the official stuff. Be a team player by all means but learn to recognize systemic dysfunction.
Make a list of what you do every day for a period of a week to see what is officially within your remit and what creeps in there. It might be illuminating to see how you are paid for driving the train but also at times asked to lay the track, clean the engine etc which is time consuming and often not conducive to your time management or skill set.
Contact firstname.lastname@example.org is you would like to hire an executive coach to help you navigate the path to optimal personal success at work.