Good boy...Good boy...

I’m a waiter in a japanese restaurant. It‘s not the best work, but it's not bad for a girl who just finished school two months ago. In our restaurant usually there are 4 or 5 couples who  cannot speak in russian. Two days ago i had two americans and you know what? I think that i need more practice with the language. They were very nice. I liked them!

Good boy...Good boy...1

I’m am a waiter waitress 2 in a Japanice restaurant.   It‘s is not the best work, but for girl who just finished school two months ago... 3  to our place usually come Usually there are 4 or 5 couples are who patronize the restaurant do not speak in Russian.  Two days ago I has had two Americans and you know what? I think I need a to practise 4 more with language) my English.  They were so nice.  I ike they) them.

In English, all "i" must be capitalized when referring to oneself. 

1.  Your title has nothing to do with what you wrote.  This is confusing.  Some suggestions,

2.  A waiter is a man.  A waitress is a woman.

3.   The "..." is used to denote that there are more things to be said but is left out because it is either understood or to let the reader think for themselves.

4.   When used as a noun, it is spelt with a "c" as in "practice".  As a verb it is, "practise".

"A New Waitress", "A Waitress Life", etc.

Good boy...Good boy...

I’m a waitress in a Japanese restaurant. It‘s not a very good job, but it's nice for a girl who finished school two months ago. Our place is usually visited by 4 or 5 couples who don't not speak Russian.  I had two Americans two days ago and you know what? I think I need to practice my language. They were so nice. I like them.

I'd correct it this way but I'm not a native speaker and I need the correction as well :)

Good boy...Good boy...

I’m waiter in japanese restaurant.. it‘s not a best work,but ok for a girl who has just finished her school two months ago... usually 4or5 couples comes to our place and they do not speak in russian...two days ago i met with two americans and you know what?i think i need to practice the language they were very nice n i liked them....