"I've made all the mistakes that some people make in a 10-year career and I've made them in two years," Meehan explained.
"I'm just growing up and learning lessons. I'm blessed that it all happened because it's brought me to a better place within myself.
"I've got my dad, he's one of the best role models any young athlete can have. Sonny Bill Williams and I are really close, he's like my brother, through Islam as well and my good friend Omar Slaimankhel.
"These boys have helped me a lot to grow into a young man. I was a boy who thought I knew everything, now I'm a young man who knows I've got so much to learn."
Of his experiences on the other side of the law, Meehan is optimistic and stresses that his behavior throughout his late teens is no reflection on his strong upbringing.
"You can see it as a bad thing, those things that happened, or you can see it as a blessing, which I do," he said.
"But I grew up with a really good family, my brothers, and my mum and dad were awesome parents.
"It just got to that stage when I grew up and started seeing the world and got a bit excited and made some mistakes, which I'm not proud of. But that's my life now and I can't change it."
Following tonight's fight, the 1.95m tall and 126.2kg giant has another bout booked for November on Anthony Mundine's undercard and hopes to be back playing football in 2016.
He is currently weighing up his options about a return to the NRL and has also had interest from Super Rugby franchises, and knows he needs to make the most of any opportunity.
"There's a lot of people that don't get the opportunities and breaks that I've been blessed to get.
"At the moment I'm just focusing on myself, getting fit and strong and I'm leaving the rest in god's hands. Those are my two arenas, playing rugby league and fighting. So as long as my side's good then everything's going to fall into place."