Without going into a lengthy argument, could you please explain what exactly, besides your rich inner world, you can offer to a much younger girl? What have you accomplished in life, professionally and personally?

It's stated in your profile, that you appreciate honesty. Well, I would like to be honest with you--the woman you describe is out of your league and would be impossible to find in your own country. That is the main reason why you are here, looking for an Eastern European girl 30 years junior. I think that if you try to approach a 18-y.o. in Luxemburg, or any other Western European country, you would risk to be ridiculed, or worse, she would call a police on you.
It amazes me how many foreign men still cannot get rid of illusion that Eastern Europe is full of young, beautiful nymphs who dream of a foreigner, any foreigner, to get married. That era is over, Hugo, and it's been for almost 20 years now.