Aw, sweetie, so many of us are going through this and it just sucks. Especially when the pain is so new. You will feel overwhelmed, sad, angry, abandoned, furious.....on and on.....and it will get far worse before it gets better.
But I am told that it will get better. In fact, you will have days when you think you can conquer the world, and then you will dissolve into tears and feel hopeless two seconds later. That's where I am at right now.
Oh, and about the house: lwb gave some great advice to "make the house your own". This helped me a lot because I could now do what I damned well pleased in this one area of my life. Plus, I can watch what I want on tv, eat only what I want for dinner...well, you get the idea.