To avoid this, I use another SSD and save there all my project files and sync and backup them with my own cloud.
Getting a little confused… ( I get that way sometimes ). You mention “running out of memory” in your first post, your computer specs show 16GB which should be plenty unless you have multiple RAM hungry apps open at once. Your last post you say “compromised due to disk space”. Just how much disk space do you have left ? Apple icon > about this mac > storage . Just how full is your disk. Also have you tried downloading and opening a SketchUp file as I suggested in my previous post ?