When you grieve for some time and your notice that your depressive state doesn't go away, wouldn't you like to talk it through with someone who doesn't come from your immediate circles? Someone who could hear you, understand you, and who could hopefully give you some ideas on how to start 'breathing' again?
In people who are emotionally stronger we'll see that they naturally bounce back when the intense grieving time is up. When there is self blame involved with regards to the loss, and if you have other negative feelings from what happened, and you constantly rethink what you should have done to prevent the loss, there is a good chance for you to fall into depressive state that prevents you from functioning as usual.
Imagine feeling extremely lost, lonely and empty inside, and, above all, it seems like nobody is qualified to help you. Do you know that feeling? When you are dwelling there for more than a couple of months, you are stuck, and it is your time to let yourself be dragged out of it. If there is a person that can help you make an appointment with a local support professional, let them do it for you, or, if you can, collect all your energy and dial that number which may bring you towards help. When your life has changed so drastically, it still isn't over. You may simply need help in getting used to the new situation, recognizing what has been going on within you all this time, and start creating acceptable alternatives from there.
Too many of us turn our backs to the community which may be waiting to help out. Feeling lonely and forgotten in our pain is devastating and we tend to forget that our loss is our live's lesson to learn how we deal with the rest what we've got to do on this planet.
When deep inside of this down stage, we cannot see the sunlight behind the dark clouds, even though it is just waiting to shine on us again. Being immersed into our own sadness we barely see towards the end of the room we are in. Lucky for some of us, this sadness does go away slowly, or it is replaced by other feelings for a while, comes back in circles, until we manage to put it somewhere on the side. The loss cannot be removed, but we can slowly gain our functioning back and start participating in life activities.
By letting others into our lives, we have a better chance to process all the negative feelings that pushed us down. The fear of forgetting the person we loved, or the anxiety of how we are going to cope from now on, and the doubts on how we are going to make further decisions in life... are so much easier to process if we find a person who can listen and understand our struggle.
There are people in your environment that may be waiting for you to open the door for them. It could be a friend, a family member, a neighbor, colleague, local counselor, or your doctor. Have a look, choose and share. Seeking support is not a sign of a weak person. To the contrary.