Here Is The Thing

I pretty much refuse to update ever again until someone tells me how in the world to make blogger recognize that when I hit return, it means I want to create a new line. But for some reason, blogger isn't abiding by this universal command for new line/new paragraph. Instead, everything is looking like one big clumped together paragraph. And that doesn't look pretty. And you know how I feel about everything looking pretty. Please advise. Thank you.