After three or four weeks, look for shape rather than cause. Which weekday sits lowest? Which tag co-occurs with low energy? Does clarity dip before it recovers, or after? These are descriptions, and descriptions are enough to change behaviour.
Be sceptical of moon correlations with fewer than twenty entries. Eight phases across three weeks gives you two or three data points per phase, which will produce a pattern whether or not one exists. Enjoy it; do not build on it.
The single most useful output is a list of drains and restorers. Two columns, updated monthly, drawn from your own tags. It will be more accurate than any generic advice about wellbeing, because it is about you.