a difficulter - The only good reason to train like a monster, and the only r

The only good reason to train like a monster, and the only reason to be tired all day.

Being a difficulter is the only reason I train like a monster. I hurt my leg.

The only reason I train like a monster is because of a difficulter. My back hurts.

I train like a monster because of a difficulter. I now hate life.