Can I transfer my data from the server I’m currently on to a different server?

Data cannot be transferred between servers for any reason or by any method.

Additionally, settings, etc., prevent data from being transferred to a World of the same name that is found on a different server.
(For example, transferring data from World 1 on the US Server to World 1 on the Japan Server)

For each server, you will need to create a new account and start the game from the beginning.