Here are the cards for today's Full Moon in Sagittarius.
The Hanged Man (Neptune-Water) is about waiting, and letting go. Today's conclusion/culmination may not have been clearly defined. Maybe all you could do was release. This echoes Neptune's square to the Full Moon - surrender.
The reversed Knight of Cups (Water) means what you were hoping for didn't arrive. What you thought you wanted was disappointing. And the reversed 3 of Pentacles (Mars in Capricorn - Earth) suggests that what you were trying to build (with others - this card is about teamwork) fell through. Your efforts (Mars) didn't net you what you wanted.
However, this spread is not about failure. The Hanged Man really sums it up - you have to wait. It's not over, because there's more to come. But there's nothing you can do at the moment. The Hanged Man suspends action, and reversed 3 of Pentacles means your actions right now are ineffective. So just let it sit. If you had to give something up (the dream, the goal) exhale into that and release.
Water is the strongest element here, so the emotional current is pulling you in a certain direction. Allow yourself to feel sad or tired. Allow yourself to feel relief, if there's something you no longer have to work on. The culmination of this Full Moon involves accepting the results, whatever they may be. And there's freedom in that.