"40 days ago my perspective was very bad," the Brazilian admitted in Singapore to the O Estado de S.Paulo newspaper.
Before the summer break, Ayrton Senna's nephew was merely Renault's reserve driver, but by the time August was over he had replaced race driver Nick Heidfeld.
Now, the rumours are strong that team boss Eric Boullier regards the 27-year-old as a better bet commercially than his current Russian teammate Vitaly Petrov with an eye to 2012.
Just over a month ago, however, "I was already planning to travel to the US to have a look in Nascar and maybe race there with Nelson", revealed Senna, referring to his countryman Nelson Piquet Jr.
"Suddenly, things were turning around.
"It's obviously really difficult to get an opportunity as I'm having in the middle of a season but the important thing is to get the results so that I can stay here next year," added Senna.