The Bulgarian is happy to fight for his place in the side, even if he is aware that the depth of talent at Old Trafford spreads to those coming up from the Academy.
In an interview with PA Sport, he was reluctant to dwell on last term, stating: "I don't want to go back to that. What it is, it was - does that make any sense? Now I am looking to the future. I was pretty happy we did the historical thing about the 19th title. I was part of it. I was the top goalscorer of the team. For me, the personal thing was great. I come from a small country and I always dreamt big. I was pretty happy when we did all these things.
"I am not 21 any more. There are many young and talented players now, including some from the Academy. You can see that if you watch games on TV. All my life, I have tried to prove myself. I have worked hard. Given a chance, I have tried to show what I can do. The last season is in the past. The goals I scored, what I did, I have done it. This is a new season. It starts all over again."
Berbatov is determined to remain at United after quashing all speculation about his future.
"Manchester United are at the top," he asserted. "Where can you go from there? Only down. Maybe Barcelona. At the moment, I don't see anything else. If you go somewhere it is a big step down. For me, I always went up, up, up in my career. I am happy."
The former Spurs striker also stressed he is not going to change his style on the pitch - both in terms of his play and his demeanour.