This is a opportunity for positive change in your life! Take it and run with it. If you feel nothing, go with that. Accept it and rebuild yourself as you want.
You can find joy if you allow it. It is not some unobtainable thing. It is right in front of you at anytime. Contentment is a choice. Joy is a choice. All of your life is a choice. So choose... do you want to keep living in the way you are presently or do you strive for something more? It sounds to me that you want better for yourself, which is an clear indication that you do feel something. You want better for yourself because you love yourself. Go with that.
You can change anytime. You can become any kind of person you want to be. If you want love, then give love. If you want contentment, then give contentment. If you want to feel something, then do something that makes you feel.
You crave relief? Accept that you crave relief... start focusing on that. Think about what you can do to create that in your life. I don't think anyone can provide that answer for you except yourself.
Sounds like an opportunity to me! I hope you can start to see it that way as well and find a spark in your life again. The fire is not out. Just blow on the embers and it will reignite. You have to begin a new way of thinking enable to create real change in your life.
I hope the best for you!
"In the universe there is an immeasurable, indescribable force which shamans call intent, and absolutely everything that exists in the entire cosmos is attached to intent by a connecting link." ~Carlos Castaneda