SAO PAULO, Brazil - Felipe Massa has revealed that he thought about quitting during his tumultuous 2012 Formula 1 season.Th Brazilian, 31, was visibly emotional on the podium in his native Brazil after Sunday's final GP of 2012.He had a bad start to his 2012 campaign; indeed, he's had a pretty fallow time since suffering a severe head injury in 2009 that nearly cost him his left eye but recovered some form in the last half-dozen races of 2012.BACK FROM THE BRINKFormer F1 driver Marc Surer told Speed Week: "The reason (for the turnaround) is twofold. First, even a rock such as Alonso is not endlessly resilient. The title fight against Vettel, usually with a slower car, exhausted him. I also believe a number of improvements to the Ferraris matched Massa's style of driving better than that of Alonso."Whatever the reasons, Massa has pulled his F1 career back from the brink to secure a new deal for 2013."First of all I was on the podium, which is a great emotion," Massa told Sportv's Bem Amigos programme, "but I think I was crying more because of the difficulties than the joys."I've taken a lot of punches, even thought for a moment 'do I want to do this?' I'd started to think above my head, which had gone into space, but behind the podium I was normal - I was congratulating Vettel, enjoying the moment - but the minute I looked at all the stands screaming my name, my wife, my family, my friends, all my mechanics, my team... then I fell (into crying)."