Share 'Giving yourself that push to start a zine'

I have a question for you all about process. When working on a zine, do you just start and fill out pages or do you have all your content ready before you start layout. I usually do the latter, but I am not starting this zine and am thinking of trying it the other way. A heavy content zine would obviously not work well with just winging it, but this is gonna be more of a lighter zine with some il…