"I think there's got to be that fear because I'll be having a great show where I feel completely comfortable and suddenly something will happen,and you have to really think on your feet a lot of the time.
"But more and more so it's just become a place of joy and comfort and a little bit of ridiculousness as well,"he says.
"I get to strut up and down,pretending I'm like Naomi Campbell,and look out at people's faces,"he adds."I just look at someone's face and it becomes very,very real very,very quickly that all of that work,those months of isolation,it's something real now and tangible."
It has also helped him navigate the shifting boundary of public and private in the era of Google.
"For me that line is an issue of control and where the sharing is coming from,"Sivan says."I wasn't comfortable sharing much of my relationship early on in the relationship because we were just getting to know each other."
Sivan came out as gay in 2013 but this year confirmed he was in a relationship with model Jacob Bixenman.
"Now I'm a little bit more relaxed about it[because] it was at my discretion,"Sivan adds."I think I would have freaked out if I started to feel that was being taken away from me and information was sort of being grabbed from me rather than me sharing it."
Sivan is effectively mid-tour. He has just wrapped the tour's gigs in Poland,Finland and Norway,and has gigs in Chicago and Auckland before heading to Australia.
He metThe Sydney Morning Herald andThe Age at a quiet cafe in a leafy Los Angeles suburb,far from the madding crowd.
"When I'm headlining I'm playing a show every second day or third day and that's all-consuming,"Sivan says."Now with these[gaps] I'm itching to do something new and at the same time I'm still really,really loving playing the show. I try to get into the studio,but two or three days is not enough.
"As soon as I start the shows in Australia I'll be back in the swing of things and then I'll probably be itching to get back to start writing,"he says.
For Sivan,Los Angeles is a workspace that allows him to pursue his music career and explore working as an actor.
"I think we're very spoiled in Australia. We've got the weather,the lifestyle,my family,my friends,everything for me is back home,"he says."It's a very,very comfortable life here. But a lot of the things that bring me true fulfillment and meaning are not here,they're back home.
"Nothing against the city at all,and I think you can make yourself really comfortable here,I've got a dog,I've got my house,I've got my boyfriend. I've got some great friends,"he says."But it's hard to not feel like this is all one big side hustle and back home is real life."
Sivan cites Amy Winehouse,Swedish singer/songwriter Robyn who"made me realise that pop music can be interesting and cool",Michael Jackson and Mark Ronson as his most significant musical influences.
And he's young enough that his first introduction to the commerce of music was Limewire -"I sinned,"he says - and later paying for his Spotify membership."Obviously now in hindsight,I am like,what a f...king asshole,pay the artist,"he adds."Yeah,I think it was just the time."
But in terms of his ambition he has no long-term plan"and that's really exciting to me",he says.
"I just know I want to be a creative that people trust,"Sivan says."I want people to be like'Troye's in a movie'or just put out a new album or new music video or book or lifestyle brand. Whatever it is,I want[them to think] oh,that should be really good. As long as I can earn their respect and their trust,as a creative that's the dream job."
Like Lady Gaga's"Little Monsters",Sivan says that relationship - between arist and audience - is tangible and meaningful. They don't just follow Sivan as an artist,they invest in him because their identify with his brand and its values.
"That relationship is very,very real to me,and it's very,very deep,"he says."I meet people all the time who come up to me and say that they remember when I put outHappy Little Pill,which was my first single,which means that they were watching my YouTube videos before I put out any music.
"Those people who really do know me very,very well have seen me grow up and I'm thankful,"he adds."The relationship is a two-way street. I think that's why it works. I've leaned on them when I needed them most and,I would hope,vice versa."
The social space of his concerts also matters to Sivan.
"People are dressing however they want to,they're meeting best friends that they've been speaking to on Twitter for months and they've never met in person,they're meeting boyfriends and girlfriends and partners,"he says.
"It's almost like a what a gay club felt to me when I first started going,"he adds."It's a place where you can really just breathe a sigh of relief and like relax,knowing that you're safe and these people around you have your back and you're just there to have a good time and listen to some music."
Troye Sivan's Bloom tour will be in Perth on September 16;Adelaide on September 18,Sydney's Hordern Pavilion on September 20 (sold out) and 21;Brisbane Convention and Exhibition Centre on September 23 and and Melbourne's Margaret Court Arena on September 25. For tickets and information,go totroyesivan.com/tours