Threading a needle sucks. You don't even have to know how to do it and you know it's awful. The action is so frustrating it's used to describe other things that are difficult.
According to one man on Twitter, you might have been doing it wrong your entire life, which is just another reason to hate threading needles. John Bick posted a video showing a way to thread a needle that looks way too easy. In close up a woman fumbles with the tried-and-true method of sticking the end through the eye of the needle. (It's not clear where the video came from, but she fumbles her way through it as though it was a bad infomercial.) Then she shows how you should have been doing it all along.