Failure in baking.......

Today i was planning to bake a chocolate cake. I woke up early in the morning and prepare all the ingredients needed. While i start mixing all the ingredients, i was humming my favorite songs. This is not my first time in baking, so it seems to be easy for me. After i have mixed all the ingredients, i put it into the oven. The cake was ready in 45 minutes. I took the cake out from the oven, the chocolate cake looks delicious and smell nice. I felt so happy and cut a small slice to have a try. Once i ate a small bites, i threw it out. Then i realized i forgot to add in sugar, the whole chocolate taste like flour, so irritating. Although it's a waste to throw the cake away, but i have to do it also. haiz~