Okay but original poster stated he plans on working/living in Europe.
He never mentioned work.
Unless you are an artist, there is no way French will help you more with your job than German
It depends on the job, and your clients.
''French speaking countries''
Except for Switzerland, they are all African countries
You may have been born in Poland, but you are more American than you think - you forgot Canada!
Wow for once a couple people read the topic instead of arguing about french which I never mentioned, thank you.
That's how it is on here, you'll get used to it eventually.
You appear to still be in your teens, with a somewhat vague plan for the future (which didn't even mention work/business) so you should be pleased to receive a wide variety of opinions and suggestions. German's a very useful language in Europe, but it
entirely depends on where you want to live/work, and what you want to do.