When will I become a Brahmin?

As per Atri Smriti ""By birth, every man is a Shudra (an ignorant person). Through various types of disciplines (samskaras), he becomes a dwija (twice born). Through the studies of scriptures, he becomes a vipra (or a scholar). Through realization of supreme spirit (brahmajnana), he becomes a brahmin."

Reference: http://www.kamat.com/kalranga/people/brahmins/brahmin.htm