"For me, to be honest, with how I felt at the beginning of the year, this title is by far the best one out of the four," said the 30-year-old, who scored 11 goals in his last 15 games of the season in all competitions.
“I came back with a lot of pain in my ankle and it took me two to three months to come back.
“I had a tough time physically and mentally and I admit that. So, for me, this is so sweet, the way I came back this season is amazing. I am very happy and I am so proud."
De Bruyne added: “I think it is special because of the way we have had to do it against a team like Liverpool. They push us so much to the limit.
“They don't make it easy because they get 90-95 points every year, so we have to do this every single time. It is hard and it is emotional.
“Obviously there was a little moment of doubt (at 2-0) but then it was all or nothing, just all-out attack.
“I don't think Aston Villa knew what was coming and we were just attacking and attacking.
“We went and we showed that we can score and it makes it even better now."