I have a two-parts job, where i have both a lot of small responsibilities, and a few big ones.
The small ones come from a lab management role, which consist of small parts procurement, risk assessments, lab space attribution, etc.
The big ones come from a prototyping role, where I help design and build prototypes according to the engineering team's schematics.
My problem is, when I read my yearly performance objectives, they are very vague regarding the small tasks, i just have one line similar to "make sure everything runs smoothly".
I'm also a bit overwhelmed because the small urgent tasks often cause the prototyping activities to slip behind schedule and make planning really hard. The fact that i am relatively new in this position does not help either, and I am afraid the whole thing will not look very bright when performance review time comes.
I can easily show my work on big projects with a few lines like "i delivered the discombulator mk. II on time", but i'm at a loss for the small tasks. I can't write stuff like "On april 6th, I noticed we were low on M3 screws and ordered some, and nobody complained about the lack of screws!"