But do you really need to know any foreign language for your work?
You may probably classify your use of foreign languages to one of these groups:
1. Your profession is strictly connected to the use of a foreign language (you are non-native language teacher or interpreter).
2. Your profession is different, but you have to use the language everyday (to be in contact with international business partners or to read a lot of technical documentation).
3. Normally you don't need any foreign language at work, but it happens on rare occasions.
4. You never use any foreign language at work but you use it for leisure, travel, social media,...
5. You have no contact with some of the languages you've learnt.
I'm probably somewhere between 3rd and 4th category. And you?

