blessing! disguise or for truth?

as early as we are fetus we are blessed by God the power to live, we should be happy that for the million of sperm that enter the womb of our mother we are the one that finally made... we are blessed that we have our life to exist in this wonderful world but sometimes made you nostalgic!!!..
bless, blessing, blessed... bless a imple word that comprised the meaning wonderful, thankful and saintful...,
we people believed that once we got the perfect life we are blessed, but thats not all being blessed are making your spiritual life happy without any hasitation or doubt.. even me im not that worthy to be bleesed by GOd to be a happy person today because i made so many mistakes in life that contadict his holy word.. i made so my moves that can be classified as satan work, but why he gave me this life? im not questioning God about my existince , but all in my mind is doubt.. i love my life today that God given me, and i really thankful to God for giving this to me, even though deep in my heart i dont deserve this!!