How to play Skyrim downloaded from steam on a Macbook?

I recently downloaded Skyrim from steam without realising Skyrim is a PC only game and is not compatible with Mac. I've decided i'm not going to waste £20 or so on the game so I want to know how to play skyrim on a mac.

I have transferred all my Skyrim program files from a PC to my mac. Now I do not know what to do. I have searched for hours now trying to figure this out, do I need some sort of 'crack'? Where can I download this? I tried using a wrapper in wineskin, followed the instructions, went to play the game and the skyrimlauncher bounced up and down in my bottom bar a few times and then disappears.

Can somebody give me a step by step tutorial, or a link to an up to date website that tells me how to do this? THANK YOU!