"create a character" is pretty much the same thing as dbcreator but worse, you got error because you didn't delete files from db folder.
On sundays there is an option in your room 'management school'. You can create, delete characters, change playable one ('to change gg') and other stuff there.
Or in dbeditor, either 'to create a new database' or load one if you made it already, make your character then click the arrow icon, next to the name. The rest of instructions is there.
On the other topic, hhs is very different game, with only common thing being school setting. And ffs noone is going to make real translations, just ignore these qsp games insted of bitching in every thread.