Brooklyn - Adjusting my header to be centered and change of background color and some other request

[Godzhand]

I would like to change my header to be centered and to have a black background for the header

And as additional request:

I would like to have the cart and currency to be far right

Secondly, I want to remove search bar.

Thank you very much for all the help, and I am sorry for asking a lot as I do not have much coding skills.

[Godzhand]

This is my store url: godzhand.myshopify.com