Kathleen!!! Something just had me stop in just now... I KNOW what you feel! You guilt yourself out for all kinds of stuff! The old saying "you can't eat an elephant whole" comes to mind. I suggest setting a timer for each thing...like 15 min. in the floor with Emma then 15 min. doing a house chore--then 15 min. working. Back to Emma etc. I have begun that lately and it really helped me. Plus, I had no idea how much work I can get done in 15 min. when I just focus on it. The "trick" (if there is one) is to let some things go. And to feel good about what you DID do, not bad about what you didn't.
I don't say all of that to discount the depression as very real! Seek help. I still (1 1/2yrs later) talk regularly with a counsellor who is familliar with adoption/family stuff. She has been and still is a great help to me.
Also, you know you can call me!
I am a willing listener my friend!