[2020] How far in advance do I need to plan as a beginner?

I’ve been watching some Factorio videos and I see some absolutely massive and well made factories, but they also plan really fa run advance in order to get it looking like that. Since I don’t know how the game works fully or understand how many of a certain thing I will need, do I need to plan this far ahead? Am I still able to find space if I do one thing at a time and don’t plan for 10’s of hours in the future?