How do I get out of this funk?

Force yourself to do it. Get up and get dressed. Go out the door. Get an overpriced cup of coffee and head to a book store. By throwing yourself into your work you got through some of the sorrow and the shock but you haven't coped with being alone. It's time to start trusting other people and learning to live alone so that you can figure out who you are. Twenty years is a long time to spend with someone and you deserve to be happy.

What do you enjoy doing? It's common to withdraw and become less active, maybe not find as much enjoyment in what you used to like but the best thing you can do is try to force yourself to do things you enjoy, even if it becomes more of a routine or day's work than having fun. I'm assuming what you normally do does involve leaving your house!

20 years is a long time, and I am not so sure you'll ever be able to say that you won't have days where you miss her because you will. The key is to focus on the positive and throw yourself into other things if you can, it could be something different, it just depends. You could throw yourself into some form of exercise or a sport when you are feeling down, you could draw or write, it could be anything like that. Find something that works for you. I know that i's cliche but think positive thoughts!Don't cry because it's over, smile because it happened.

i would just say take this time for yourself to rest and try to process the feelings. get out in nature, call your family, eat good food.