Hi everyone!

I have little chance to get to know a native English speakers. (a fewは「数が少ない」の意味を持ってますが、chanceは数えられない名詞です。a native English speaker＝「一人の英語常用者」,native English speakers＝「複数の英語常用者」、または「英語常用者全般」)

I want to be able to write well English. / I want to write well in English.

And I will be glad to be your friend / I will gladly be your friend / I will be happy to be your friend など

First of all, I will introduce you to myself. / Let me introduce myself.の方がいいかもしれません。 (I introduce you to myself の意味は「あなたを私に紹介します」I introduce myself (to you）＝「（あなたに）自己紹介します」)

I like women = 女が好き, I like a certain woman = ある女性が好き。ごめん、あんまり分かりません。

I believe in Shintoism and Buddhism. / I'm a Shintoist and Buddhist religion. (religionはShintoismとBuddhismに含まれています。)

I live in Toyohashi/Aichi where in middle of Honshu in Japan. / I live in Toyohashi/Aichi, which is in middle Honshu in Japan.

It's near by Nagoya where the last Expo was held.

It is in the western end of the Honshu, next to Hiroshima.

たぶんI'm sure about it.の方がいいと思います。Exactlyはこの所で少し意味不明です。

I like playing the piano and the guitar and reading books.

If you are interested in it, we can have a chat about those.

I would like to know what you're interested about in Japan. (I want to より I would like to のほうが丁寧だと思います。)I would like to know why you are interested in Japan.も可能です。

I hope you will correct my mistakes. (mistakeは一つの間違いです。mistakesは複数、またはいくつかの間違いです。)

I have a few rare chance to get to know a native English speaker.

I want to write well in writting English.

And I'm glad if you be become my friend, I'm glad...

First of all, I will introduce you to myself to you.

I like a women.

I believe in the Shinto and the Buddhist religions.

I lived in Toyohashi/Aichi where located in the middle of Honshu in Japan.

It's near by Nagoya where the last Expo was held.

There It is the western end of the Honshu, next to Hiroshima.

Fuji's top/peak is the best!

Exactly. Actually,

I'm interested in playing the piano and the guitar and reading books. or (I enjoy playing the piano and the guitar and reading books)

If you are interested in it, I'll We can have a talk/conversation about it with you.

I want to know what are you're interested about in Japan.

I hope you correct my mistakes.

Hi, everyone!

I don't have many chances to get to know a native English speaker. [Alternatives: I don't often have the opportunity to get to know a native English speaker. I've only had a few opportunities to get to know native English speakers. I don't have much contact with native English speakers.]

I want to be able to write English well. [Alternatives: I want to learn to write English better/well. I want to improve my English writing ability.]

Help me, please! [Type a blank space after each comma (,) and period (.). You do not have to start a new line after a period.

And if you'll be my friend, I will be glad... [Alternative: And I'll be happy if you become my friend. Note: "I'll" is a contraction of "I will."]

First of all, let me introduce myself.

I like women.

I believe in the Shinto and the Buddhist religions. [Alternative: I practice both Shintoism and Buddhism. I am a member of the Shinto and Buddhist faiths.]

I live in Toyohashi, Aichi, which is in the middle of Honshuu in Japan.

It's near by Nagoya, where the last Expo was held.

My hometown is Hofu, Yamaguchi.

It is at the western end of the Honshu, next to Hiroshima.

Fuji's top is the best! [The view from the top of Mt. Fuji is great!]

Exactly. [この文が分かりません。]

I'm interested in playing the piano and the guitar, and I like reading books.

If you like them too, let's have a talk about them.

I want to know why you're interested in Japan.

I hope you correct my mistakes.

It is at the western end of the Honshu, next to Hiroshima. [I'm sorry, I missed the article "the" before Honshu before. As al-san pointed out, it should not be there. Usually, one does not use "a" or "the" before a place name. The only exceptions are some place names which are descriptive noun phrases, such as "the White House" (the place from which the president of the US governs), and "the United States" (which originally meant a union of separate states).]

I have a few chances to get to know a native English speakers.　(I don't have many chances to get to know native English speakersも使えますね :))a fewとfewの違いなんですが、 a fewは少しあるという意味でfewはあまりないという意味です。たとえば、I have a few friends in Tokyo.＝東京には友達が何人かいます。I have few friends in Tokyo=東京には友達が少ないです。aがあるかないかで意味がだいぶ変わる不思議な英語ですみませんw

I'm straight.I like womenって自己紹介すると「私は女好きです」という意味になっちゃうんですがそれでもよかったらそれでいいんですがw、ただsexual preferenceを言いたかっただけだったらI'm straightのほうがいいではないかなと思います。straight←→gay