Hectic few months but have decided to finally stay here. I'm happy

I'm gonna apply for a second year, my visa is up in May. Do I need to apply for everything that I did 12 months ago? Police check forms etc?

Yep everything.

There will be some questions in the application (which you are probably aware of) asking if you have been to Canada on a visa before or alike, enter this info, but essentially do everything as if you were applying for the IEC for the first time.

Thanks dude.

Is there a easy way to get the police forms from here?

They can return the police forms to international addresses at no extra cost. I think it's by standard air mail.