Hi Angelina,
We can all relate to having those days where we are down in the dumps, and I know it stinks when these days happen. I do just what you are doing and vent then I go to bed. As most of the people here know...I am an advocate of venting and letting yourself have those crappy days because they are going to happen. I bet you will wake up tomorrow and feel like a new woman. When you leave for work in the morning, put on some good music, put the windows down and sing. That's what I do!!