Migrating from Windows to Linux

Hi Guys,

So, i have been trying to do this for months. Ive been reading up and desperately trying to find a way to do this, many seem very complicated and as I am a relative novice, it all seems way above my abilities. However, I am really hoping someone here will be able to help me.

Ok, so, I mistakenly started my site on a GoDaddy Windows Plesk server, its now getting a lot of traffic and I am continually getting messages saying the site is very slow and sluggish. I have done all I can to make it as fast as I can on the server, but after speaking to a few people, all saying GoDaddy just isnt up to scratch. So I want to move the site to a better server provider and they all seem to only offer Linux. So….. how!?

I simple guide to how to do it would be amazing.