Masthead Menu and Logo

Hi my website is www.hitcontinue.eu

1. so I was tweaking with some things in the blog page and my navigation menu disappeared. I got it back by going to widgets and adding a custom menu in the masthead section. But now it’s on the left side where my logo used to be! And the logo is gone even though it is uploaded and everything looks fine in the Theme Settings. I came here to the forums before I messed anything else up.

2. I am trying to customize my blog page by adding a header picture and some content at the bottom before the footer and nothing is staying.

Thanks for your help.