Hi Delia, this is how I would write it:

My first small essay

Today for the first time, I'm writing a small essay but I don't know what to write.
I wish all Italki friends my best regards. 
In China the time is half past eleven at night.
I'm going to sleep now, good night everyone.

My first small essay

Today for the first time to I write a small essay, but I don't know what to write.
I wish all Italki friends have a good mood everyday.
I am now in China and it is now the time is at half past eleven in the evening.
I went am going to sleep, good night, ladies and gentlemen.

Write more, make more mistake, learn more

it is free, unless your time is not free to write this^^

All the best for your English

My first small essay

Today for the first time I write a small essay, but I don't know what to write.
I wish all Italki friends have a good mood everyday.
I am now in China, and now here is half past eleven in the evening.
I'm going to sleep, good night, ladies and gentlemen.