To add on to the OP frustration, we were taught to offer our prayers "in Jesus' name" as Jesus is the intermediary between God and imperfect humans. "Jesus" is English for the Latin version of the Greek Ἰησοῦς (Iēsous) as there is no way to translate the Hebrew name ישוע (Y'shua) into Greek. Some words and names just don't translate into other languages.
So Jehovah's Witnesses are told by the Watchtower to pray to Jehovah (a made up name created by a Catholic monk) through Jesus' name, which is also made up.
If you were born in England, the U.S., or any other nation whose language is English and your name is John I am sure you would appreciate it if people called you John even if you were to travel to Spanish speaking nations where they would use Juan instead of John. A person's name doesn't change based on geography or national language of translators.