The 21-year-old star, who was treated at Dawn at the Meadows recovery centre for two weeks, posted a picture of her on a lakeside location to her instagram page, accompanied by the message:
"I've done everything I could to the best of my ability. Thank you for the unconditional love and cyber hugs. You inspire me."
Selena and Justin pictured together when they were an item
The pretty brunette was apparently suffering from exhaustion after a year of filming, performing and promotional work, and just needed a break to rest.
No doubt the star has also been effected by ex-boyfriend Justin Bieber's recent arrest, after he was suspected of driving under the influence.