Space Between Paragraphs

Hi, everyone

So, my problem is pretty basic, it’s just bugging me. When I go to write a post and I’m writing a paragraph and then press enter, space will appear between my two paragraphs. However, when I hit preview, it doesn’t look like the same as it did in the Visual Editor. Is there any way to fix this minor problem? My only solution as of now is to tap Enter twice when I’m working on a post, but this is somewhat frustrating.