It seems your internal struggle about your perceived inefficiency is burning you out. Rightfully so if you are wasting time on what's not particularly important. Do your managers value the quality of your work as much as you do? If not, do you think you'd be able to live with a slightly lower quality deliverable that frees you from the stress? Perhaps it would allow you to work on that feature you do want to work on.
We have a right to be happy. We should make decisions that satisfy the majority of our lives and where do what we love. For things not under our control, we still need to love what we do.
The easiest solution to your problem is creating discipline and decisiveness. When you give yourself more hours to work than you are expected to, you create a vacuum of inefficiency. You work unsustainably on things of little value. Instead I would force you to a) figure out your success criteria, b) what are those steps, c) prioritize those steps, and most importantly d) set time limits for each of those steps. The constraint of time will force you to get to the 80% quickest. I have written some articles on these exact problems and in the process of creating an app with those insights. Feel free to read more here: https://medium.com/produce-productivity/ee13c1600b6b
We have a right to be happy. We should make decisions that satisfy the majority of our lives and where do what we love. For things not under our control, we still need to love what we do.
The easiest solution to your problem is creating discipline and decisiveness. When you give yourself more hours to work than you are expected to, you create a vacuum of inefficiency. You work unsustainably on things of little value. Instead I would force you to a) figure out your success criteria, b) what are those steps, c) prioritize those steps, and most importantly d) set time limits for each of those steps. The constraint of time will force you to get to the 80% quickest. I have written some articles on these exact problems and in the process of creating an app with those insights. Feel free to read more here: https://medium.com/produce-productivity/ee13c1600b6b