The 19-year-old model spent three weeks in a drug and alcohol treatment facility in Malibu, California, after checking in with "emotional trauma".

She has never opened up about exactly what led her to seek help, but in a new post, Baldwin reveals it may have had something to do with her anxiety issues, which she claims she has since worked through.

In the post she writes, "There are so many moments I have taken for granted in this life due to my lack of presence. I have overlooked countless blessings and opportunities to start fresh, and I have neglected, manipulated, and lied to the people I hold dear to my heart, but more importantly, to myself.

"It hasn't been until recent months that I relearned what it truly means and what it feels like to be fully present. For the longest time, I lost compassion towards almost everything i previously cared for and I was so lost in darkness, that I could hardly hold a real conversation with another human being long enough before I was due to have an anxiety attack and find my way out of it..."

And she is offering thanks to those who have helped her get back on track, adding, "After all my wrongdoings and heartbreaks and trauma and absence of self, how am I here today? I just wanted to take a moment to show gratitude to everyone who has continued to stand by my side through all that took place and through all that life will continue to throw at me.

"I'm proud to say I will not be knocked down and alone next time around. I have never been so supported and felt so loved in my life. I'm happy to say I feel like Ireland again and it's amazing that I can actually say that because it's been a really long time and I was starting to forget what she was like."