The 19-year-old quit Old Trafford in the summer, shunning a new deal at United and instead signing for the Turin giants.
He has emerged as a first-team regular with the Italian champions and turned in a brilliant performance in the weekend win over Udinese, scoring two goals.
"I'm really happy but I have to continue to work and improve," he told Raisport
"Manchester United regret? I don't care, Manchester United is behind me. I'm happy to be at Juventus and I don't think about Manchester United."
In Italy, Pogba is being likened to Frank Rijkaard and Patrick Vieira, but added: "Me like Rijkaard or Vieira? They were two great players, but I'm Paul Pogba."
Pogba's agent Mino Raiola feels his client made the right decision in leaving United.
"Paul has said the right thing to say about United," Raiola told Tuttosport.
"(Sir Alex) Ferguson is no longer part of his life, the present is Juventus and Antonio Conte. Paul has to work and keep his feet on the ground, he does not lack anything to become one of the greatest.
"Now is he worth €25 million? It's not important because Pogba is not for sale."