Yep, worse yet, the "soul crushing-ness," of T7, makes it difficult not to emotionally and mentally check out after so many wipes, especially this late into the patch cycle. This is why most pugs seem to do best on their first few attempts.
I go the opposite direction, getting more frustrated and invested leading to bigger and dumber mistakes leading to more frustration and even yet bigger mistakes. The one thing I will say about T7: the small mistakes already causing a wipe means that bigger mistakes don't actually make things go any worse.