Fails for Impossible Goal

Hi, I am doing the Impossible Goal workbook and not clear when to do the 25 fails for quarter 2, 3, 4. I am doing the ones for the first quarter now.

Should I create 25 fail lists for all four quarters now, and then adjust the ones for 2, 3 and 4 when I get to those quarters?

Or do I wait until quarter two before I do the one for quarter two. Wait for quarter three for the one for quarter three, etc.?

Many thanks!