My correction ratio is down to 0.85, even though I almost corrected almost every Chinese entry.

It sounds a lot more natural to put 'almost' after the verb.

Show me your written progress, ok?

'written progress' sounds a little strange.

Although I am a little tired now but, I still want to write something here.

My correction ratio is down to 0.85, even though I almost corrected almost every Chinese entry.

I am a little tired now, but I still want to write something here.

Come on, my Chinese-learning friends!

This sentence sounds way too demanding. I know you're trying to encourage Chinese learners, but it sounds too intense here.

SPlease show me your writtening progress, ok?.

Your sentence sounds too demanding, so I edited it to make it more polite.

I want to share it with you guyseveryone here/you guys/everybody here.

You can use you guys at the end of the sentence if you're writing in a casual tone. That being said, it's becoming more mainstream to use inclusive language like everyone here and everybody here since not everyone here is a guy.

I am a little tired now, but I still wanted to write something here.

My correction ratio is down to 0.85, even though I almosthave corrected almost every Chinese entry.

Show me your written progress, ok?

This reads a little weird, maybe "Show me your writing progress, ok!"

As every student in China may know, there's a famous slogan atused in almost every school: study hard and make progress every day.

I wanted to share it with you guys.