How do I change the layout of blog posts

Hi,

I want to amend the layout of my blog post.

Here is a blog post http://copy-queen.com/blog-posts/so-what-crafting-copy-that-makes-people-care

I want to move my comment higher so that people don't have to continue to scroll down to add and view comments. There is a lot of stuff like recent post, related posts etc.

How can I get rid of these?

Thanks
Martin