I believe that one can never do 'worse' or 'better' that they do in specific circumstances.

Those circumstances, when observed from enough distance, reveal that we always do the best we possibly can, considering all circumstances.

Myopia and/or regret prevent us from realizing that.

https://medium.com/@borut/you-may-never-see-the-whole-picture-6d5252bfc267

https://medium.com/illumination-curated/the-structure-of-regret-efddfc07158e