The reality star’s father Mick took his own life last year and Kirk discovered his body.
The 33-year-old used drugs as he struggled with his grief and has told the Mirror that he had suicidal thoughts.
He said: “After dad died, I planned my own suicide. I wanted to die."
“I had to shout myself back from the thought of it and I went to speak to my dad’s partner," he went on. "Immediately talking about it made me feel better, which is something I would urge others feeling like that to do.”
Kirk said at the time he was worried that something would “snap” in his head “like something snapped in my dad’s head”.
The star is now sober and has become an ambassador for suicide charity Papyrus, which he said was an honour.
Kirk was on TOWIE from 2010 to 2013, and his dad also appeared on the show.
Mick was found dead at his home in January 2021 and a coroner later ruled that the 57-year-old had taken his own life.
Speaking on Loose Women last year, Kirk revealed he tried CPR to save his dad.
“We knew he was in the house, he’d locked himself in the house and I smashed through the door,” he said.
“I gave him CPR, I tried my best. I knew he was gone though, I knew the minute I saw him."
For confidential emotional support at times of distress, contact The Samaritans at any time by calling 116 123 or emailing firstname.lastname@example.org.
Watch: TOWIE's Chloe Brockett breaks down as she quits show