我想表达的意思是：我从没有写日记的习惯，为了提高英语能力，我决定从今天开始写日记。

I haven't had the habit for writing diaries. For improving English, I decide to write a diary everyday from now.

youdao

So, my advice to anyone who's trying to improve their ability to write in English

因此，我给想要提高自己英语写作能力的人的建议是，

英语阅读：技巧 - SpeakingMax英语口语达人