the diary-- 5th of November

Today is a sunny day, actually, it rained in the this morning. On such a cool autumn day like this, feeling the sunshine and wind makes(helps) me relax!
Last night, I chatted with my customer, who is from Pakistan. As for his messages, i have no words to reply. The first thing he asked me is, "are you single?", my answer is was no, then he said,"ok, i won't do business with you. i am the time passpastime customer. Don't waste your time. Your time is more costly than me." In fact, I don't treat him as a real customer because a Pakistani gave me a bad impression before. So then i replied coldly,"don't be worried, to be polite i replied you.Don't worry, I only replied to be polite.(or) Don't worry, I only replied out of kindness." Maybe, my cold response shocked him. He probably did not expect that the sellers could treat him like me the way that I had. Then him he changed him his mind quickly and said,"ok, buy!" he made a mistake i thought, the correct word is "bye", so I replied,"bye." He was surprised,"I said I buy, you can't sale sell?" It was funny, "oh? why did you change your mind?" He didn't say more. He only toldJust tell me his requirement; many many staff. The end result is that now i still prepare data for him. He has too many other thoughts. Sincerely, i sincerely don't want to reply him.
The thing what makes me happy I was relieved to was that I talked to talk with Shiny, haha, he is humorous, but a little lascivious, but i like his accent and laughter! he said he has a girlfriend who is a boy. ummmm, what should i say~he is a doctor and he can speak three kinds of languages. He is amazing. I admire him; he is my idol!
that's all! of this!

You only use a colon (:) when you're about to make a list or series. You use commas (,) before a quotation and between clauses unless you have a conjunction. Grammar just gets too much to explain. I'd recommend just looking into different uses of colons , semi-colons , commas, quotations, etc.

This was really easy to read and understand. Your grammar just needs editting at this point. Very well written though. Keep up the good work!

the diary-- 5th November

Today is a sunny day, actually it rained in the morning, in the such cool autumn, feeling the sunshine and wind makes me relax!
Last night, I had a chat with my customer who is from Pakistan, from his messages, i have no words to reply, the first thing he asked me is that "Are you single?", My answer was No, then he said:"Ok I won't do business with you, i am the pass time customer  Don't waste your time, your time is precious than mine", Infact, I didn't treat him as a real customer because Pakistani gave me a bad impression, then i replied boldly: "don't worry, be polite ." maybe, my bold response shocked him, he pobably did not expect that the sellers can treat him like the way they treated me, then he changed his mind quickly and said:"Ok, buy" he made a mistake, i thought, the correct word is"bye", then i replied:"bye", he was surprised,"i said i buy, you can't sell", it's funny, "oh? why did you change your mind?", he didn't say more, just tol his requirement to me,the result is now that i still have to prepare datas for him, he has too many other thoughts, Seriously, I don't want to reply him.
The thing what makes me happy is that, talking with Shiny, haha, he is humorous but a little lascivious, i like his accent and laughter! he said he has a girlfriend who is boy, ummmm, what should i say~he is a doctor and he can speak three languages, amazing, i admire him, he is my idol!
that's all of this!