Warner admitted that he would have toned down a bit if he was to start all over again.
In his final Test innings, the southpaw scored a match-winning 57 as Australia successfully chased down 130 to win the Sydney Test by eight wickets and clinch the series 3-0 against Pakistan.
Warner’s illustrious Test career spanned 112 matches, where he aggregated 8,786 runs at an average of 44.60, including 26 hundreds and 37 half-centuries.
After playing his farewell Test, Warner said he was not "everyone's cup of tea" while also adding that he would have toned down a bit if he was to start all over again.
"Over the years, I haven't been everyone's cup of tea but for me, I've played the game as hard as I can and trying to do my best for the team," Warner told host broadcaster 'Fox Cricket'.
"If I had my time again and I knew that, I probably would show a little bit more patience with myself and I'd bite my tongue a little bit more."
David Warner was known for his aggressive nature. He was always ready to not just sledge but also engage in verbal volleys with the opposition players.
The left-hander was the key figure in plotting the infamous ball-tampering scandal in 2018, for which he was handed a one-year suspension and a lifetime ban from Australian team leadership.
"I think a lot of people don't get to see or meet or know the person. From when I first started, I was that chirpy little fella that was out there," Warner said.
"That was my role in the team...to go out there and get under the batter's skin and the opposition's skin and yeah, it did boost me a little bit because they came at me when I batted.
"But they saw it early days, and I think your first impression, you don't get a second chance at that and you know, I've tried to rebuild that trust and faith."
Warner also opened up on his change of approach in later years, attributing it to a self-imposed drinking ban.
"I went two years where I was being called the Reverend, I stopped drinking for two and a half years and really enjoyed that time," he said.
"I think people wanted the old bull back, but for me, it was going out there and playing with pride and passion, and there's other ways to go about it. I've toned it down a hell of a lot and that's the real person that I am.
"I think the game's changed a lot as well, you're playing with a lot of the guys you're playing against. There's no need to go out there and be really chirpy and aggressive, there's other ways to do that."
Before the Sydney Test against Pakistan, David Warner also announced his retirement from the ODI format, in which he amassed 6932 runs from 161 games at 45.01 with 22 tons and 33 fifties. He was also part of Australia’s 2015 and 2023 World Cup winning teams.
"It's pretty much a dream come true...has been a great 18 months for the team. On the back of a WTC win, Ashes draw and (ODI) World Cup, to come here and win 3-0 is a great achievement. I'm proud to be with a bunch of great friends here.
"I felt happy, really proud (coming to ground this morning). We're in entertainment business and I just tried to come out and showcase what I can do, play my shots and we managed to get a win on the board which is great."
Talking about his support system, Warner said, "(Family) is a massive part of my life. You can't do what you do without their support.
"I give credit to my parents for a beautiful upbringing, my brother Steve, and then you know came along Candice who sort of got me into line and we now have a beautiful family... I'm not going to carry on because I'll get too emotional."