The `Jealousy` hitmaker - who rose to fame on 2002 musical TV talent show `Pop Idol` - admits he has been seeing a therapist for a long time since he came out as gay, and he still "hits a wall" because of it.
He said: "I don`t get angry very often, but when I do, everyone knows about it.
"Therapy`s helped me in that, as in everything else. I first saw a counsellor at university, just after I came out. I`ve had ongoing issueswith depression - in a mild form, but I still hit that wall from time to time.
"It feels like running a cruise liner. I watch myself intently at all times, and I`m alert to the smallest changes on any of the decks."
However, the 32-year-old star is enjoying his life now, and one day hopes to be a "stylish gay dad".
He added to You magazine: "I`m fully embracing my 30s. I`ve just moved house, I want to get a dog. I love watching `Antiques Road Show`, this morning I fed my fish. And kids? Probably when I`m in my 40s. I like the idea of being less selfish - though I also like the idea of rocking up on the school run as the stylish gay dad as opposed to the yummy mummy."