For the first one, use google translate, for the second one, the answer is in the question and the third one is there with missing characters.
i got it....now I am stuck on figuring out what the password to the sister account is
It's one of the first passwords in the game which are half given to you at the start
I don't know what letters I need to put in
iwi*hmybo**sw***bi**er
Sadly I can't give you the answer as that would defeat the purpose of the game, all I can give you is hintsThis hint might help: what do girls sometimes wish were bigger?