Michaella McCollum has spoken about the 'long ride' for the two women to return to their homes
McCollum was caught trying to smuggle 24lb (11kg) of cocaine worth £1.5million out of Peru with accomplice Melissa Reid in 2013.
The pair, nicknamed the Peru Two, were jailed for six years and eight months after admitting the crime, but were freed in 2016 after striking a deal with Peruvian authorities.
McCollum, from Dungannon, Co Tyrone, returned to Northern Ireland in August.
- COCAINE discovered in nose of American Airlines plane
- Walker on fire as he sets himself ablaze while smoking crack cocaine
When one door closes, another opens
Writing on Facebook, she told her followers: "Now that I have the chance I just want to thank everyone who has supported myself and family through these past few years.
"Please know I truly appreciate each one who cared and had my back.
"Thank you for all the sweet messages I have not got reading them all just yet or got a chance to reply to them but I will definitely make a good attempt to get back to you all.
The Irishwoman spent three years in a Peruvian prison for being caught with £1.5m-worth of cocaine
"It has been a long ride to get where I am today but it just shows that when we fight hard enough for something we can achieve."
McCollum and Reid, from Lenzie, East Dunbartonshire, travelled to Peru on August 15 2013, and were caught trying to leave the country with the Class A drug at Lima Airport two days later.
They faced the prospect of a maximum 15-year prison term but struck a behind-closed-doors plea bargain to secure the shorter sentence.
Michaella McCollum wrote on Facebook that she was positive about the future despite her reputation
Alongside a selfie showing a blonde hairstyle, McCollum told friends of her hopes for the future despite her criminal reputation.
She said: "When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not see the one which has opened for us."
After their arrest the pair said they had been forced to carry the drugs under duress.
World's biggest drug hauls Thu, April 21, 2016
From tonnes of cocaine seized in the Caribbean ocean to a huge cannabis farm in the UK, take a look through the world's biggest ever drug hauls.
US Attorney's Office 1 of 13
Border agents have discovered what could be the longest cross-border tunnel in history, seizing seven tons of marijuana and a ton of cocaine that were crammed inside
Accomplice Melissa Reid told the Scottish Sun that her life would 'never be the same'
However, Reid told the Scottish Sun on her return how she travelled to South America to have a story to boast about to friends on the Ibiza party scene.
She was offered offered 5,000 euro (£4,100) to fly to Argentina, spend a few days sightseeing and return to Europe with a package in her luggage.
"My life will never be the same," she told the newspaper.
- Peru Two drug mule Melissa Reid back in Britain after Peru prison hell
- Drug-dealing pensioner booted out of OAP home spared jail
- Cocaine worth almost £200 MILLION seized from yacht in night operation