Is it just me?

At the bottom of my blog, you will see a link for "Older posts". Go back a page and there will be another for "Newer posts". This I understand. What I don't understand are blogs that use "next" and "previously" for navigation. Does "next" refer to the next page written (aka newer) or to the next page back (aka older)? From what I've gathered, there's no consistency in how the terms are used. I should learn to just click one, see what happens, and move on. Instead I overthink, I analyze, I question, I ponder ... and then I click one, see what happens, and move on. Only I'm frustrated and wondering if I'm the only one who can't navigate a blog successfully. Does anyone else have this problem? This should not be hard.

Graphic by Denelson83