@JGoldman10,
You are wrong - if you think you can get to know countries the way you describe you will do it -
A language is not just a few words of slang. You have to know about the culture, the laws, the traditions, dress codes,what area there will be gangs etc.
Just see how you went about it regarding Greenland - you got it all wrong.
If you can get information - and serious ones - about one country in a short time good luck to you.
Remember I was reading a book years ago by an American. The book took place in Stockholm during the Nobel Fest. As the people in the book crossed the water between Copenhagen and Malmö in December and the Americans were watching the naked legs of the girls in their summerdresses I knew his research was really really bad.
You probably will make thousands of mistakes like that the way you go about it.