I can't feel anything

It's been over a month, I started to feel lonely, depressed, empty and anxious. It was overwhelming. I was crying most of the time and couldn't get things off my mind. I can't sleep at night since a few days once again because of the overwhelming thoughts. But, I can't feel anything anymore, not a bit of sadness that was making my days worse, I can't feel the pain, nothing. I know all these emotions are somewhere in my head but I can't just experience anything, I feel helpless and worthless.