Out of curiousity, what modeling program were you working with? I worked with Blender in the past, but recently moved to the “Maya side” after working with for some college classes. One of the biggest things to wrap your head around, is scale from your application of choice to UE. Maya was nice, because right off the bat 1cm in unit was 1cm (or UU) in Unreal Engine. I’d suggest making some very basic scenes (a simple floor, walls, and a human scale box) for reference templates. There are many workflows people utilize, but I think starting out small and fast, jumping back and forth between modeling and seeing it in Unreal helps you get it down faster. That is compared to trying to get some master workflow in the beginning.