Science, maths, economics, computers, Arts, dance, singing...etc are all learnt by our consuious mind...these things are being taught to us and we make a consuious effort to learn them. But there are few things which are taught no where and by nobody, they are learned by our sub-consious mind..like EMOTIONS. Few emotions are natural, they are internal...like pain...few emotions are self-created(which are learn by our sub consious mind)...like Sadness. Pain is a natural feeling. Sadness is selfcreated when you are not in terms with pain. Isn't it?
So ..if you are sad about anything...it because you chose to be sad. Don't blame anybody. Only "YOU" can help yourself get out of it.
Sad part is that we set standards to be happy. If i get this..i'll be happy, if i achieve this i will be happy, if i have him/her i will be happy. I don't have those...so i am not happy. Why do you need a reason to be happy?
We got to shed those unnessary emotions...anger, frustation, sadness.... after all you get one live. Then why not Live life king size.