I'm really sorry everything's so hard

One thing I wanted to say, is that you should talk to your hubby about this. people who haven't been depressed often can't really understand it. Explain your best what depression means.
From what I hear, you'll need to set boundaries, because you can't completely rely on him.
You have to find a way to work on getting better. Try to find some hobby other than the computer... I don't know what will work for you.

Do you get enough sunlight in a day?

Also, as far as the exercise is that something your hubby and you could do together? Take a walk every night or something? It's something that could be just you time as well.

just throwing out ideas
*hugs*