Carrick revealed in his autobiography that he had been feeling depressed since the club's 2009 Champions League final defeat in Rome against Barcelona.
Speaking to 'BBC Sport', the 37-year-old said: "The fact some people have been in contact makes me glad I came out and said what I did."
"Even if it helps someone else without me even speaking to them, it is a bonus."
Carrick retired in June 2018 and is currently part of Jose Mourinho's coaching team.
"If someone wants to speak to me, I will try and help them.
"Even if it helps someone else without me even speaking to them, it is a bonus."
"I didn't even think I would be going because I was miles away at United.
"We are not all machines. Everyone has tough times", Carrick added.