Where do I go now?

I'm lost and alone.  I feel so disconnected wtih the rest of the world and I have no clue how to find my way back.  I feel this desperation that I'm not sure how to deal with.  I don't know how I got here.  It's like everything I think I should do ends up always being the wrong thing.  I feel like things are kind of pointless.  I have lost everything just about including my best friend now.  I don't understand why he hasn't tried to call me.  I need to hear his voice and to have a connection with him again.  He is my touchstone that keeps me from giving up completely.  No one else seems to even know that I exist or if they do if I dissapeared would be affected really by it.  That's a hard pill to swallow.  What is my purpose in this world in this life?  Why am I here and why was I created?  Is there any hope of redemption?