I am not able to comprehend the meaning of "almost a lifetime since" used in the following sentence:
Almost a lifetime since, he had been elected an MLA twice and an MP four times from Hyderabad, a seat that his father Sultan Salahuddin Owaisi represented six times. He has recast the archetype for Muslim leadership. Does he regret giving up law to be a lawmaker? “Regret…? I don’t know... It is a very subjective thing. I don’t regret things in life, you look at the good side of it and go ahead,” Mr. Owaisi said.