Hi! I'm Yang. I'm 38 years old. I'm a Chinese. I'm learning American English. My English sucks. But I like English. I wish I could speak it.

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Your English doesn't suck! Your English is great! It's a lot better than my Mandarin. :P

Only a few things to mention here; Don't forget to put a space between the end of a sentence and the next word. When you put in a full stop/period at the end of a sentence you also need to have a space between that and the beginning of the next sentence.

When saying our age we would say our age, then "years old", for example "I'm 38 years old". By this you mean have been alive for 38 years. Or you could instead just say "I'm 38" and we'll know you're talking about how old you are.

Also while you are not entirely wrong to say "little city", we usually only say "little" when we're talking about an amount of something. Like a "little bit of food", or a "little bit of money". When talking about the size of something it sounds more natural to say the thing is "small". You can get away with saying "little" instead, but "small" will sound a bit more natural.

Other than that, great job!

Who am i I am;

Who am i

Nice to meet you.

I'm learning American English. My English sucks (is not so good). But, I like English. I wish I could speak it more fluently.

I live in Sichuan Meishan. It's a little (small) city. It's beautiful and quiet and I like it.

I have a fourteen-year-old son. He is a cute (handsome) boy. He likes to play computer games. I love him.

Notes:  The slang term "sucks" is appropriate only in very casual settings. It can be considered vulgar, so be careful where you use it.

Although "little city" is technically correct, we more often say "small city."

For a boy that age, almost a man, we would refer to him as handsome rather than cute.

I hope that is helpful.