Demi Lovato is ''grateful'' for every day, almost two years after her near-fatal overdose.

The 27-year-old singer was rushed to hospital in 2018 when she relapsed after six years of sobriety, and after turning her life around, Demi is now in a good place.

She wrote on Instagram: ''Grateful for every day I have on this earth. This year hasn't been easy for any of us. It's been a time to reflect, to heal, to grow, to educate, and to spread love...''

Meanwhile, it was recently revealed that Demi's new YouTube documentary will tackle the ''horrific'' experience.

A source said: ''Demi's experience in 2018 was horrific and will continue to affect her for years to come, so she hasn't felt able to speak about it properly yet.

''But she has written much of her upcoming album about the situation and wants to address exactly what happened to her in the hope she can prevent anyone else suffering a similar experience.''

Demi is said to be ''nervous'' about detailing her ordeal, but wants to speak about it in her own documentary so that fans can hear about it in her own words.

The insider added to The Sun newspaper's Bizarre column: ''She has been nervous about speaking about what happened because she doesn't want anything to be misconstrued, so decided her own series would be the best way as she will have the power to control exactly what is spoken about.''

According to the source, most of the documentary series has ''already been done'', with plans in place to release the series ''this summer''.

Demi's documentary was first announced last month, and it was said at the time that the four-part series will explore her life over the last three years, including her overdose and her journey back to full health and sobriety, as well as key events including her landmark performance of the National Anthem at this year's Super Bowl.

For Demi, the series comes three years after she teamed up with YouTube to release 'Demi Lovato: Simply Complicated', which tackled her struggle with addiction and her initial journey to sobriety before her 2018 relapse.