Help on stability issue on my first build

Hi, im trying to rebuild my dorm room in lego and im pretty happy with my build so far. But one problem is the stability of the build. I want to ask whether this going to be a big issue when i build it in real life and how can i fix it, also i dont know why the legs of my bed is giving red warnings. Also any tips on how to improve my build will be hugely appriciated. Thank you! submitted by /u/Acceptable_Crow5918 [link] [comments]