X and Z values always changing | Genshin Impact

[Nekyuu]

I've found the player coordinates on Genshin impact, so I can do what I want with them, but there's a problem, when I teleport via a legit teleport point in the game (or when I re-launch the game), the X and Z coordinates reset to 0, as if the X = 0 Z = 0 point had changed.
So I don't have a central point for the map, which is problematic.

How can I find the player's true coordinates, which are certainly linked to the player's point on the game map?

Please help