Fun and Games

Donatello was a genius with a great understanding of technology, and everyone knew him as such. What would happen, though, if all of his ideas ran out and exhaustion caught up with him? What if he finally realized all of his trauma from his work as a ninja and all of the bullying from his family? Maybe he would reach his breaking point, maybe he'd give up.
(Based on the 2012 TMNT series, after season 1 but before season 2 since I haven't seen it.)
Major character death warning!