Hulk has defended his decision to leave Porto in the summer to join Zenit St Petersburg.
The Brazil striker joined the club for €50 million, but struggled to settle in his new surroundings, with his inconsistent form on the pitch marred by dressing-room disagreements.
However, the 26-year-old recently stated that he had resolved his differences with the club, and has now made it clear that he has no regrets over making the move from Portugal.
"I decided to go to Zenit because I had won almost every competition at Porto and I like new challenges in my career. I hope I can carry on winning like that in the near future," Hulk told O Estado de Sao Paolo.
"I am getting used to my new home. Now I need to focus on football. The biggest challenge in Russia was the cold weather at first but after playing games at -12, I think I am settling down quickly.
"We will fight for the title in the Russian league and try to win the Europa League."
Zenit captain Igor Denisov publicly criticised the decision to spend huge sums on the Brazil attacker and midfielder Axel Witsel, but Hulk insists that such issues are now firmly in the past.
"He [Denisov] never said anything to me. They talked among themselves and the board did not like it because it became public. But that is in the past," Hulk continued.
"Today we have a good relationship. All this was overcome. We have no more problems."