Lambert, a Liverpool fan, is the top English scorer in the top-flight after spending much of his career in the lower leagues having worked in a beetroot factory a little over 10 years ago.
"I am still pinching myself," he said. "I am really enjoying the season.
"Obviously there have been some lows but the highs have been unbelievable and I am confident there are plenty more to come in my career, hopefully at Southampton.
"It is going really well but we're still not safe, there are still points to be taken, but the lads are absolutely buzzing after that result.
"I think everybody knows the relationship I have with Liverpool. It was a massive game and my family were there, but obviously I am professional and my main focus was to try and get three points.
"I think we have been unlucky these last few weeks and deserved a few more points than what we've got. But I don't really like saying that, I am just happy to say we got the three points."