I am an undergraduate student writing a thesis. I am stuck in a cycle of revisions and would like to be able to complete my thesis and move on to other things.
I have both an advisor and co-advisor. They have different ideas about the structure and content of the thesis, and my advisor will ask that I re-revise after getting comments from the co-advisor, even if this goes against their initial instructions. I don't communicate directly with the co-advisor (we communicate through my advisor) due to previous disagreements.
How can I let my advisor know that needing to make multiple conflicting changes is frustrating me, and that I need to finish this thesis?