[Theme: Twenty fifteen]: Content of sidebar to the left

Hi, i need to move the content (links, photo, search box to the left). I want to have the content close to the main parte (where the posts go).

I’ve tried to search on google and modify it my self with any success.

This is the reference: I need something like her sidebar menú:

http://hilaryparker.com/

This is my site:

http://www.omargonzalesdiaz.com/blog/

Thanks.