Does this short paragraph make sense?
Every nation has its own characteristics, and there is a story behind each country that caused its nation to be that way. For example, Japanese people are often portrayed as introverts who have a hard to fitting into foreign cultures. This probably has something to do with the fact that Japan is an island country, or a "Shimaguni". Japanese people have developed an island nation mentality without even realizing it.
Comments
it mostly makes sense, except for this part: have a hard to fitting
This sentence isn't right
"Japanese people are often portrayed as introverts who have a hard to fitting into foreign cultures."
You need to say something like "have difficulty fitting" or "have problems fitting". I winder if you meant to say "have a hard time"? That would be OK but might sounds rather slangy.