"I achieved X today. Is it enough?"
The answer will depend on your criteria. And if the answer isn't an obvious "yes", it's worth noting that the question is an anxiety inducer that doesn't entail any kind of decision. You might just as well be asking, "Do I have permission to feel good about my day?"
If you're asking, by the way, I'll grant you permission: the answer is "yes". (From whom exactly are we seeking permission anyway when we ask silly questions?)
You can always decide to feel good about your day by choosing your criteria. Here's an example: Any day above ground is a good day.
More importantly, you can choose the game that you are playing. A game I am fascinated with is turning useless questions of evaluation into a statement of assessment and inherent worthiness.
"I achieved X today. It is enough."