Hi, I have some comments on the title.
The first part "Shinitaku naru Shoumonai Hibi ga Shinitaku naru kurai Shoumonakute Shinu" means something along the lines of "The boring days that make you want to die are so boring that you'll want to die, so you will die."
But the second part, (which shares a word with the first) "Shinuhodo Shinitakunai Hibi." means "The days where you really don't want to die so much that you could just die."
So it doesn't translate too well, and I've talked to Japanese native speakers that say it's confusing for them too!