I am what I choose to be

I must warn you before you read, my blogs are going to be as varied as can be (or extremely similar!). Thats 'cos, everyday is ruled by a different emotion. I may feel extreme despair one day about the state of things, while another day I would be happily singing about the beauty of life. So, be warned!
My friend told me very recently, you say, you are what you choose to be .. but hey I think you are not.. Take today for eg, You are not well and you are unhappy about it. Here is how I reasoned, I probably (invariably!) have chosen to be unhappy today, feel a little sick (for some variety in life!). Well, all I can say is I was laughed at and quite rightly so.
Life is full of contradictions and yeah, may be I epitomise the contradictions called life. After all, I am what I choose to be??