Danny Willett said it felt "all still a bit surreal" after winning the US Masters - the first Briton to do so since Nick Faldo in 1996.
The 28-year-old edged out defending champion Jordan Spieth, who squandered the lead, to win his first major title at the 80th Masters on Sunday.
Speaking to ITV News, the father-of-one said the first thing he did on waking up on Monday was to check if his green victor's jacket was still in his room.
But now Willett is looking forward to reuniting with his wife Nicole and son Zachariah James, who was born via C-section a week ahead of the tournament.
ITV News Washington Correspondent Robert Moore reports:
Willett said: "It's brilliant. Winning golf tournaments around the world is fantastic -we all dream of winning majors and competing in majors.
"It really is a dream come true. I dreamed of it in certain shots and yesterday I made that dream come true and it's still not quite sunken in yet - what we've achieved and what it means".
He added that he was nervous throughout the final day of the tournament in Augusta, where he closed with a five-under-par 67, with Lee Westwood finishing second on two-under-par.
Willett said the best message of support came from his wife, who said she would be proud of him however well he played.
"That's life and luckily for me that's where I am able to go back to every week and that's what it's all about - family and friends not really caring whether you win or you don't win", he said.
Now he is looking forward to "locking the door and throwing the key away for a bit" as he celebrates with his family.