how do i start to design?

Could some one please help me to start a web page.
I have very basic IT skills. I have read about codes etc, but it’s all a little confussing! Where do I actually start to create my masterpiece? Obviously it isn’t in word, powerpoint, which is whatI use to do documents and files etc. I was directed here from Telstra broadband to setup my free web page.HOW & WHERE?