Factory efficiency (long read sorry)

I understand the process of factories and it takes time. I’m on the beginnings of oil factories, but I can’t help but feel like I’m missing something. Watching YouTube on all these insane factories making MULTIPLE components at a time I just can’t seem to find out how to do that. Of course comparison is the thief of joy but my feeling of accomplishment is insanely diminished by the fact I don’t seem as efficient as I could be. I have 2 factories. Made inside of walls and all and 1 only making motors iron plates (I was low) and copper sheets, and 1 making steel pipes and I feel like I could pump out more but motors take so much I’m sending all my resources to that for my iron (alternate recipes for iron pipes and wire). I guess my question is how do I get more out of my 3 normal iron nodes to push more material or am I over thinking this process?