One of those days

So today is one of those days. I am feeling slightly depressed today and dont know why I really dont have anything to be depressed over. I had an interview for a full time teaching position today. I got a haircut yesterday and got my ears pierced today (for the second time, I havent worn earings in years so the holes closed up). I have been losing weight I have been working out, I am not where I want to be with that but I will get there. But I still am not happy today. I dont know why. It feels like I have every reason to be happy and I just dont know why Im not. Not knowing why I'm upset just makes me more upset. Today is just one of those days I really just feel like sitting here and crying. Why on a good week do I feel like crying? Why do I feel bad for not being happy me all the time. I mean I am Carolyn, everyone expects me to be the smiling upbeat one. The one they can go to. But how am I supposed to help people when I feel this way. Why do I feel bad for worrying my mom when I sound tired. I just feel sooo overwhelmed today. I have pretty much done nothing today (other then my interview) because I felt like this all day. I am going to go try and get one thing done. Maybe if I do that I will start feeling a bit better. Whats worse is that now I feel guilty for venting and writing this, when I know so many of my friends are going through a difficult time right now. Somedays I wonder is this cycle ever going to end? When will things improve?