You have to pace yourself, like an athlete with an injury doing slow small exercises before returning to marathon running.
When you're short on space, a cliché or trope can be the most efficient way to do what needs doing and move on to the real story.
If you still want to write even after you let go of any feelings of being obligated to write, take some time to think about why. Are there ways to access those motivations and keep them in the front of your mind so you can gain some satisfaction and joy from them?
Since your circumstances make writing a bit challenging for you, you're responding to that by sitting squarely in your comfort zone. Every writer does this from time to time, especially when starting out, and there's no shame in it. You just need to recognize that it's what you're doing, and consciously make the decision to make yourself uncomfortable in the service of your art.