02/11/2014 AT 9:30 AM ET
The “Come & Get It” singer shared feelings of gratitude on Instagram on Monday night.
“I’ve done everything I could to the best of my ability,” she captioned a photo of herself smiling on a boat. “Thank you for the unconditional love and cyber hugs. You inspire me.”
Last Wednesday, it was revealed that Gomez, 21, was quietly admitted to Arizona treatment facility, Dawn at the Meadows, a month earlier on Jan. 5.
“Selena voluntarily spent time at Meadows but not for substance abuse,” a rep for Gomez told PEOPLE at the time.
Gomez’s admission came shortly after she cancelled the Australian leg of her Stars Dance tour.