So...I Thought The Internet Was For Porn?

I'm...watching knitting videos on Youtube. This one, to be exact. Can anyone tell me why as soon as I actually start knitting that my stitches get too tight for me to do more than like, three? WHY? And then I start shrieking. Clearly, I'm doing something wrong.

E.T.A.: AHA! Ok, like, 25 minutes later, I think I've figured it out! Mostly by doing what I was pretty sure was the WRONG way to do it. I was bringing the right-hand needle through the wrong way. Knitting the George Costanza way! If it feels wrong, it's right!