I've just started learning how to knit (like 2 days ago) and I've just been practicing knitting a square. I think I understand how to do it and I think I'm doing it correctly, but it seems like the last stitch on the row I'm working on is loose and I can't tighten it.
Welcome to the board! Sounds like you're doing great. It's like Dustina said- it just comes with practice. Jump into a fun project before you start getting bored with your squares- if you can knit and purl, you can do anything! We'll help you along the way.
Mommy to two wonderful girls
"I don't have to conform to the vagaries of time and space, I'm a loony!" -Campbell Bain (David Tennant) 'Takin' Over the Asylum'