Appearing on The Ellen DeGeneres Show, she said: "I would write letters in my head to loved ones of why I did it and my reasoning behind it, how it was nobody's fault. I didn't wanna write it down on paper because I didn't want anybody to find it", she added. "That's how serious I was".
She also said she'd suffered from gout, which was "the most painful thing I've ever experienced". "I had to do it on my own. I think I need to really do this on my own and really do even more digging and soul-searching, ' and just saying it out loud helped immensely because I kept it to myself for months and months at a time and saying it out loud really helped".
The actress originally underwent a kidney transplant after her father donated his organ to her in 2012, but after her body began to reject it, she had a second operation in May 2017, when her younger brother Ian was found to be a match.
However, she was keen to point out that while it worked for her, she understands everyone with depression handles it differently. "You can just talk to me'". And saying it out loud really helped me.
Now, nearly two years on from the second procedure, the star is feeling much better and can now enjoy her life, including vacations to Mexico with her boyfriend Wells Adams.
Hyland is 'doing really well, ' after recently revealing she had a secret second kidney transplant after her first one failed.
Though finally speaking her truth out loud was what helped bring her back from the brink, Hyland notes that she doesn't want to speak for all people struggling with depression. The good thing about being stable, health-wise, and having an wonderful significant other is that now I'm able to travel more. "I didn't want anyone to know I was that close because if I knew, they would try to persuade me". It was previously made public that she lives with kidney dysplasia, which essentially means her kidneys did not form correctly when she was in the womb. "Yeah", Hyland replied, explaining that it wasn't until she vocalized her suicidal thoughts that she realized that was not the route she wanted to take.
Though she knows everyone with depression is different, Hyland encouraged those struggling to verbalize their thoughts.
"It's not shameful", she said.
All jokes aside, Hyland said Adams is "the best man" she's ever met.