The former Nerazzurri forward is determined to prove that he can still be a success in the Brazilian league and aims for a place in his nation's World Cup 2014 squad
With the 2014 World Cup fast approaching, the 30-year-old admitted that he must act now if he is to return to the Selecao.
Speaking at a press conference, the former Inter and Parma striker said, "I know that this is my last chance."
Having only featured in 16 matches last season due to a succession of injuries, the Brazilian is eager to repay the faith shown in him by the club and its fans.
"In the last two years I really thought about whether to stop or continue," he said.
"The fans always asked me to return. But now I must take responsibility. Flamengo want to help me. Everything depends on me."
With his off-field problems behind him, Adriano is ready to seize his chance and hopes to achieve his dream of returning to the international fray.
"The dream of every footballer is a World Cup in his country. I have to go through some stages and I will endeavour to do things seriously to return to the Brazilian national team.
"Naturally it is still a dream, but if I do everything right to get back to being the Adriano of before, I think I have the capability to return to the team," he added.
The striker, who has scored 27 goals in 48 international appearances, left Corinthians at the end of the season on a free transfer after he failed to complete his medical treatment.