"Gosh-darn-dag-nab-it-to-tarnation!" Jimmy hear's Darlene yell from across the farm. Figuring he'd better go face this head on, he heads towards the barn.

"What the hell happened Jimmy? You were just supposed to build a pig pen!"

"Oh for goodness sake I don't know, Darlene. Those instructions weren't making no sense honey! I got dizzy trying, eventually just wrapped it up and went on to feedin' the chickens."

Luckily Darlene found her answer in Jimmy's attempted pig pen itself. She just had to look carefully.

Why did Jimmy have trouble constructing the pig pen?

Jimmy had trouble building his own pigpen because

He wanted to create his own pigpen cipher, but he wanted to trick the solver by turning the decoding sheet every line.
He wanted to emphasize it by making the message THESE QUARTER TURNS ARE TRiCKY (which certainly were!)

Using it as-is, translates the first and fifth lines to THESE / TRICKY, while rotating 90 degrees clockwise gives us QUARTER for the second line and a 180 degrees rotation gives us TURNS for the third line