Rob Delaney opened up about a tough 12 months as he celebrated his 17-year sobriety on social media Monday.

The 42-year-old, who lost his two-year-old son Henry last January after a battle with brain cancer, said how 17 years ago he was in a wheelchair in jail.

His moving message included, “Sobriety allowed me to be a reasonably good dad, husband and worker through it all.

“Sobriety allows me to grieve fully, and grief is an expression of love.”

RELATED: Rob Delaney Opens Up About His First Christmas Without His 2-Year-Old Son, Says He Wants To ‘Destigmatize Grief’

Delaney thanked everybody for their ongoing support: “I can’t do it alone.”

Social media users praised the “Catastrophe” star for his heartfelt words.

His latest post comes after he revealed he and his wife Leah had welcomed their fourth son in August, just seven months after Henry’s tragic death.

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Stars We’ve Lost In 2019