Hello.

First of all, I definitely recommend you writing your composition with your own word from the beginning, I mean,  without Google-sensei or any other translator soft wear, since you are an adult and you've got your own thought and idea. Though you've learned only basic level, do not be afraid of using it.

＊＊＊＊＊

漢字は美しいです

when I started learning japanese, I only know how to write in hiragana,but now as I learned some kanji, I think it's beautiful. so I get used to it. I will do my best to learn all of them.
正しくしてください
one question please, how do i connect two sentence meaning : sentence A and sentence B. I know I must use te form,but how do I use it in this example : ひらがなをしか書けない、漢字が嫌いです
my try is ひらがなをしか書けなくて、漢字が嫌いです　

＊＊＊＊＊

「ひらがなしか書けなくて、漢字が嫌いです」simply means "I  know only Hiraganas, so, I don't like Kanjis". 

When you use Te-form in front of an adjective that exprese your sentiment such as かなしい、うれしい、たのしい、etc..the verb Te-form means the reason from where the feeling came.

For example,「あなたに会えて、うれしいです。」means "I am pleased to see you".

So,「ひらがなしか書けなくて、漢字が嫌いです」means「（わたしは）ひらがなしか書くことができません。ですから、漢字がきらいです」.I don't think it makes sense.

So, Let's think of it once again.

For example;  She really doesn't like studying Kanji, that's why she likes using only Hiragana.

「漢字の勉強（べんきょう）がきらいですから、ひらがなしか書きたくないです。」

or,

It supposed be very hard to acquire a lot of Kanjis, she knows only Hiragana.

「ひらがなしか書けません。漢字の練習（れんしゅう:practice）は大変（たいへん:hard)ですから。」

The above sentences, Japanese I used is all basic level (even my English is still basic level), but you will understand what I meant.

Please express yourself with your own language!!

がんばってくださいね。