Thank you! So, If I understood correctly, I can have two own language, a foreign language allowed by my profession, and other languages payed by interest points, like this:
OWN - Jiddis (education) - native
OWN - English (education) -native
latin (skill points) - profession other language
german (interests skill points) - hobby
hebrew (interest skill points) - hobby
Also there is the rule, which allows you to add +10 to similar languages, if a language of yours is above 50, and another 10 when it is above 90.
Does this play in case of own language? Technically, the rule is for language groups, but in my case, Jiddish is half german/hebrew, so it would be logical to both german and hebrew languages receive some bonus. But might it cause the investigator to become overpowered?