The 27-year-old Commonwealth Games silver medallist was badly injured in a motorbike taxi accident in Vietnam.
Earlier this week she was flown back to Scotland and is in hospital in Edinburgh.
In a Facebook message posted by a friend, Stephanie also said "can't wait to get home and have a Nando's".
On Thursday, her parents said she had opened and her eyes and said "Hi".
In a further update, on the SaveSteph facebook page, a friend said the judo star had made "outstanding progress" and was eating and drinking small amounts by herself and fully able to communicate.
"Hopefully next week she will be moved to a rehab centre and continue her progress," the statement said.
In her message dictated to her friend, Stephanie said: "Tell everyone thank you for all their support and well wishes, I am going to be up and about before you know it and come and see everyone and can't wait to get home and have a Nando's.
"Thanks everyone for the cards flowers and trinkets that you have sent."
The 27-year-old, who grew up in the Highlands but has been living in Dunfermline, was flown back to Scotland from Thailand after being treated in a Bangkok hospital for a serious head injury and also infections, including pneumonia.
Doctors in Vietnam had given her a 1% chance of surviving her injuries.
Her parents, who live in Daviot, near Inverness, flew to south-east Asia to be with their daughter.
Stephanie, who won her Commonwealth Games medal at Glasgow 2014, had been in Vietnam for about four months, teaching underprivileged children, when the motorcycle accident happened last month.
Her skirt is believed to have become unravelled and caught in the wheel.
Friends and family set up a crowdfunding campaign to pay for her medical costs after it emerged her travel insurance was not valid because she had been in the country more than 31 days.

Martin Godfrey said he had never supplied Tesco and was surprised to find the picture being used on the firm's website.
The supermarket chain acquired the image through an agency.
A Tesco spokesperson said: "We work tirelessly to support farmers and suppliers and we are sorry for any upset that has been caused."
Mr Godfrey, from Okehampton, Devon, said the picture was originally taken when he was working for Shillingford Organics near Exeter, but was later sold on as a stock image.
Tesco later got the image through its advertising agency, which acquired it from Getty Images.
Mr Godfrey owns an organic produce business and campaigns with the Land Workers' Alliance.
He said the picture of him pulling carrots on the organic farm was a "marketing blunder".
"This inappropriate use of the organic farming image and myself... was taken whilst working at Shillingford Organics some 10 years ago, which has no connection to Tesco whatsoever," he said.
The image has been removed from the supermarket's online promotions, but remains printed in some of its magazines.
Tesco has promised not to use the image in future promotions.
It has offered to donate Â£1,000 to a local charity, Mr Godfrey said.
He said he appreciated the supermarket was "doing something about food waste" and suggested other chains should do the same.

Once Kyle Abbott dismissed Sri Lanka captain Angelo Mathews for 59 in the third over of the day in Port Elizabeth, the tone was set.
Abbott (2-38), Kagiso Rabada (3-77) and Keshav Maharaj (3-86) all played their part as they went 1-0 up in the series.
Stephen Cook's second-innings 117 had set the home side up for the win.
South Africa are on track for a third-straight series win after losing their number one ranking at the start of the year.
The second game in the three-match series starts in Cape Town on 2 January.
Scots judo star Stephanie Inglis has thanked her supporters and said she hopes to be "up and about" soon.
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An organic farmer has persuaded Tesco to take down a photograph of him from its website.
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South Africa beat Sri Lanka by 206 runs thanks to a five-wicket haul in the first 14 overs on the final day of the first Test.