In this life it is useless to look for someone to blame for what happened to you. Whatever happens - look not for the culprit of your troubles, but for the meaning of what you had this test for.
You will be less disappointed, angry and hate everyone around, and more understand that life is just material given to you by nature. And what will you create from it: a masterpiece or mediocre stamping - the work of your own hands, desires and thoughts ...