Carryover Loss

From my 2018 taxes I still had $40,000 capital loss caryover.

 

Typically, each year I use $3,000 as a deduction against ordinary income.

 

But in 2019, I had no income and didn't file a return.  In 2020, I am filing a return.

 

What happens to the caryover loss ?  Do I lose the ENTIRE $40,000 ?  Or do I only lose $3,000, leaving me with $37,000 carryover for 2020 ?