The best place for me.

I learn many languages nowadays so that I can travel and see lots of different countries. That way, I can find the best place for me.

Of course, Japan is a great country, and it's true that I like Japan.
On the other hand, I'm not certain that Japan is the best country for me to live in.
I feel like I'm too ignorant of the world.
I'd like to think, and brush up on my sense of values. "Where is the best place for me?"
It may or may not be Japan.

So, from now on, I'll write in here about what I'm getting up to on my English trip.

(There were only very minor mistakes in this piece and you already had one correction, so I thought I'd offer an alternativ version that's maybe more informal :))

The best place for me.

I am learning many languages now to travel and see many countries to find the best place for me.

Of course, Japan is a great country and I like Japan. It's true.
On the other hand, I think it's not an absolute thing that Japan is my the best country to live for me.
I feel I'm too ignorant about this world.
I'd like to brush up my sense of values up and think.
"Where is the best place for me?"
It's may or may not be Japan in the end.

So, I'll write in here about what I look up for my trip in English, from now on.

[Very good work.]