I’ve gotten better at handling this over time as I’ve been with TR several years now. A couple years ago I was definitely the guy who failed one workout and proceeded to bail on the plan I was following and rethink everything. Thankfully I’ve grown and now realize it’s really not that big of a deal.
Stay on target, focus on how the training feels and don’t obsess over just one workout. I like many got my ass kicked by Spencer +2 recently and even though it sucked in the moment I know i’m good. My FTP isn’t wrong it’s just that 3 min at 120% is freaking hard. I dropped the intervals to 90 seconds and carried on. Next workout was 4x10 min at FTP and I nailed it so like I said I know my FTP is good.
If you’re failing workout after workout then it’s an issue, but obsessing over nailing all of them just isn’t productive to me.