Made this video for just your situation https://youtu.be/RsRoyvSeJfg?si=VzCM8HQo6eh5e5GD
Just before midnight, just before solar and lunar midnight, go to the river and put about half a teaspoon of Himalayan salt on your tongue.
You'll have to look up the local time for lunar midnight. This is exactly when the moon is on the exact opposite side of you with the Earth between you.
You know how a magnifying glass collects all the sun's energy and focuses it on one point? It can actually cause a fire. That's exactly what we're doing except instead of a sunlight, we're doing it with water energy.
If you get Taoist bamboo salt, you don't have to do this by the water.