Getting started with EP

I am due in a few months with my second and after a terrible experience breast feeding my first that led me to switch to EP at 8 weeks, I want to exclusively pump from the beginning this time. My question is, how do you do this? How do you get started to be sure there’s pumped milk ready for right after having the baby?

I have a scheduled c-section this time so as long as things go to plan I do know when the milk should be needed.

TIA for any and all advice!