Taking drastic decisions. I got positively surprised bu cutting features or just implementing fast without second thinking.
Although it may be an issue for scalability, when I look back at my current game project, I just think I should stay simple in my mechanics and just polish them instead of piling them up because I want some features I like from another game and so on.
Also I'm now trying to think my project as multiple smaller ones. While I was already dividing tasks and decoupling code, I think my workflow would benefit by considering the inventory, for instance, as it's own project that will function by itself instead of being a system for my game. I already created a dedicated unity project for that now haha
The biggest take I'm guessing by doing so, is to not overthink, to get straight to the point when I'm working on a feature. I'll see if it is as effective as I expect it :P