"Don't get me wrong, I love teaching and I'm a fantastic teacher," she added.
However, Olivia said she doesn't agree with the "wholesome persona that all teachers are required to have".
"Teachers are expected to be squeaky clean and have never made a mistake in their life and it's just a very unforgiving culture surrounding the profession," she continued.
"I've made some very big public mistakes. Although I love [teaching] I just don't think it's for me ultimately."
WATCH: Olivia Frazer lashes out at Married At First Sight viewers
Despite copping flack from viewers for leaking rival Domenica Calarco's nude OnlyFans photos during MAFS, Olivia went on to make her own account last month.
Olivia, who charges subscribers $14.99 per month, reportedly made $10,000 in the first 12 hours after gaining roughly 100 new subscribers.
Olivia's candor about her teaching career comes three weeks after she revealed she was on the hunt for a new job after being fired following her controversial stint on MAFS.
"I've had a few job interviews, that haven't gone the best – but that's okay," she said at the Celebrity Slim AU event in Sydney. "I'll work anywhere that will give me a job. Kmart, hit me up!"
"Every interview I've done has been fair, and I've had the interview based on my resume and merits, and I think I should have a job based on my skills and accomplishments."
However, Olivia's latest comments about turning her back on a teaching career are in stark contrast to her previous statement that it's her "ultimate goal" to teach.
"I'm definitely putting off my final placements for a while. I don't know if any schools would take me this year... I won't be putting myself out there to do that," she said in May.
"I want to be a teacher so bad, it's my passion, I think right now it's just gonna be more of a long term goal rather than a near future, which is a shame. But, it's what happens."
This article originally appeared on our sister site, Now To Love.