set [Days Left v] to ((10) - (current [day v]) //you change 10 to whatever day it is

if <(current [year v])>(target year)>
// passed 
else
if<<(current [year v])=(target year)>and <(current [month v])>(target month)>>
// passed
else
if <<<(current [year v])=(target year)>and <(current [month v])=(target month)>>and <(current [day v])>(target day)>>
// passed
else
set [days left v] to (target day)
set [i v] to (target month)
change [i v] by (((target year)-(current [year v]))*(12))
if<not<(i)=(current [month v])>>
change [i v] by (-1)
repeat until <(i)=(current [month v])>
if <(((i) mod (12)) mod (2))=(1)>
change [days left v] by (31)
else
if <((i) mod (12))=(2)>
change [days left v] by (29) // leap years are complicated so I ignore them
else
change [days left v] by (30)
end
end
change [i v] by (-1)
end
if <(((i) mod (12)) mod (2))=(1)> // we add this month too
change [days left v] by (31)
else
if <((i) mod (12))=(2)>
change [days left v] by (29) // leap years are complicated so I ignore them
else
change [days left v] by (30)
end
end
end
change [days left v] by ((0)-(current [day v]))
say [idk if this worked but]
say (days left)