Hello Patrick and Welcome!
I can tell you for certain you’re not the only pilot who’s busted a checkride, not by a LONG shot! In modern aviation and contemporary safety we acknowledge the “Inevitability of Human Error” (ie, people make mistakes). What’s important is when (not if because it will come up) you’re asked during an interview that you own it. The guys that have issues are the ones that point fingers. “It was the examiner, my instructor, the airplane, the alignment of the universe…etc” ain’t gonna fly (bad pun intended). If there’s a story, tell it and what you learned from the experience (there’s ALWAYS a lesson in there) and move on. That said don’t make a habit of it!