Introducing myself

hello everyone.
I come from china ( It's better to say " I am from China " but your sentence is correct ) and I am ( this sentence must have a subject otherwise it's incorrect ) twenty years old. I am a Lively and cheerful boys ( You are just 1 BOY ).
I usually like " to " ( Missing " to " ) play basketball,badminton and so on( You must finish your sentence with " . " ). 
Forgive me because ( you must have a reason for asking for something and you must use " because " to referr people to it )  i do not know what to say. I want to study English. 
Can you help me ?