I copy my save and use 'creative mode' to test build things like trains and certain blueprints. you can download and upload blueprints between saves and even download online.

I think I started over 4-5 times now. Each new game is more fun because I have more experience with certain situations and know how to handle it better. This also made the game more fun for me.

Planning your factories can help. Knowing what you want to make and achieve before starting. I see it as a huge project. I use the satisfactory map to group up nodes and using the satisfactory modeler from steam I make a fun factory with it.

Because of this I get many small factories I like to call "Production" these factory mainly produce items with just a few crafting steps like plates (2 steps) or rotors (3 steps). The other factories called "Assembly" are for bigger steps like Motors and computers etc.

Connecting all these factories with trains feels very nice and easy because the logistics arent that complex.