I need your help with WordPress!

Okay guys I’m having a nightmare with WordPress at the moment, every piece I try and post just publishes as one massive block of text no matter what coding I write. Obviously as a writer I write a lot so having it all appear as one massive block of text just isn’t good for me and it literally takes me HOURS to sit and write code for every single paragraph I write. I don’t want to do that and I’ve never had to in the past so I don’t know why WordPress has suddenly broken. Do any of you know how to fix this? Please help! xo