Omelet help.... gah why is it so hard?
Cover it!

The secret to omelette not having a runny middle, and being able to handle it without it breaking is to use a loose fitting lid (or another pan, upside down) as a cover for most of, if not all of the initial cooking

This in effect steams the top of the egg, ensuring it is cooked before the bottom burns

This also increases the fluffiness of the egg :-)

You will then be able to fold or flip with ease