I am feeling great, robust, and lively.

Energy comes in different currencies and they do not convert cleanly.

Some days you get three genuinely good hours in the morning and nothing after lunch. Some days there is no focus at all but you could walk for miles. Some days it is all social — you are excellent company and useless at everything else.

Spending the wrong currency is what makes a decent day feel like a failure. Ask what kind of energy turned up before deciding what to do with it. Robust does not mean unlimited. It means you have something worth matching to the right task.