I guess this is a down day

Although I am not going to allow this to deter me from the journey I am on today is definitely a down day. I find myself feeling like its literally me against the world. How am I really supposed to get over days like this? What do I say to myself to make me feel better about the fact that I am all alone in a world consisting of billions of other people? How can this be explained? I am by most people's standards a nice looking woman, I work, provide for myself, and i am a wonderful friend to those who are friends back...so how did I end up here????