Andso I'd like to have a new, unique experience. so I'd like to have a new, unique experience.

And I'd like to have a new, unique experience. I'd like to have a new, unique experience.

The word "And" doesn't fit here.

I think a couple things contribute to this destination. I think a couple things contribute to this.

I think couple things contribute to this destination. I think couple things contribute to this destination.

another way you could phrase this sentence. A couple of factors that contributed to my decision are as follows.

I think a couple things contribute to this destination. I think a couple things contribute to this destination.

I think couplea few things contribute to this destination. I think a few things contribute to this.

Firstly, I've watched quite a lot of anime. Firstly, I watched quite a lot of anime.

First, I've watched quite a lot of anime. First, I've watched a lot of anime.

Having "quite" when you have "a lot of" feels redundant. You can say "quite a few" or "a lot." Choose one.

But it isn't so that I just want to visit Japan just because this country was origin of animanime originated from there. But it isn't that I want to visit Japan just because anime originated from there.

But it isn't so that I just want to visit Japan because this country was origin of anime. But it isn't so that I just want to visit Japan because this country was origin of anime.

The fact that Japan is the origin of anime is not really the reason but

But it isn't sonly that I just want to visit Japan because this country was origin of anime. But it isn't only that I just want to visit Japan because this country was origin of anime.

But it isn't so that I just want to visit Japan because this country was origin of animeI want to visit Japan not only because it is where anime originated from. I want to visit Japan not only because it is where anime originated from.

The first part of the sentence feels clunky. Consider rewriting for clarity.

Anime rather showed differentRather, anime showed various places in Japan and aspects of their culture. Rather, anime showed various places in Japan and aspects of their culture.

Anime rather showed different places in Japan and their culture. Anime rather showed different places in Japan and their culture.

rather the different places and Japanese culture showed in the anime.

Anime rather showed different places in Japan and their culture(actually) showed me Japanese culture and many different places. Anime (actually) showed me Japanese culture and many different places.

The word "rather" doesn't seem to fit here. "Actually" may have been the word you were looking for. Also, I think it feels more appropriate for this sentence to come before the previous sentence. Reconsider your writing structure.

I know it must be very different in real live from what I imagine in real life. I know it must be very different from what I imagine in real life.

I know it must be very different in real live from what I imagine. I know it must be very different in real live from what I imagine.

I know, reality is very different from my imagination.

I know it must be very different in real livfe from what I imagine. I know it must be very different in real life from what I imagine.

I know itJapan must be very different in real live fromity compared to what I imagine. I know Japan must be very different in reality compared to what I imagine.

What is "it?" It's unclear. Is it Japan? Is it the Japan that anime showed you? Also, "to live" is a verb. "Life" is the noun form.

But it's just a dream. But it's just a dream.

...? I couldn't understand what you were trying to say with this sentence. What do you mean by "it?" Make it clear.

OK? OK?

?

:) Second, it's just feels so much different from all the places to which I've been. :) Second, it just feels so much different from all the places I've been.

:) Secondly, it's just feels so much different from all places to which I'I have been to. :) Secondly, it's just feels so much different from all places I have been to.

:) Secondly, it's just feels so much different from all the places to which I've been. Secondly, it just feels so different from all the places to which I've been.

:) Second, it's just feels so muchI get the feeling that Japan is very different from all other places to which I've been to. I get the feeling that Japan is very different from all other places I've been to.

When you use the present tense with "feels," it sounds like you're in Japan right now. Reconsider writing in the subjunctive mood.