Coffee or Tea Spelling errors

     When I was a little girl, my mother liked a singer who was named DengLiJun. I listened a song of hers, called "Beautiful Wine and Tea". At that time, I (was or became?) interested in tea. Few years ago, in middle school, I knew some kinds of teas of the world. Some people like black tea, others like green tea. In Tibet, people would put milk, butter, and salt in tea. They called it "butter tea" . (酥油茶？） Some grammar corrections needed for this paragraph.

     I  thought tea was the same as coffee at first, but I was wrong.
    Tea is calm, coffee is warm. I am not sure what you mean by this comparison. Do you mean that tea is usually served cold, and coffee is usually served warm? Chinese have drank tea for thousands of years, so tea is in our spirit. Chinese like tea, so they are (do you mean subtle? implicit is used to describe actions, not people) and tranquil.(who can tell me what the difficence between 'quiet' and ' tranquil' ? Thanks) Quiet describes a person who does not talk a lot, or very often, while tranquil decribes someone who has a calm personality.
    Now Chinese accept many different ways to drink tea. Young men like tea with milk, ladies like teas that taste like fruit . In the supermarket
there are lots of bottled teas, as it is more convenient (for drinking tea while in a hurry?). Need to say why it is more convenient.
    Recently, I have loved drinking black tea, and I found that it is good for stomach. I hope more people will soon learn the advantages of drinking tea, and will love drinking it.

So far, it looks like you mostly have trouble with English spelling and grammar. It also appears that your punctuation is in need of some improving, but it is not too bad, as I can still understand how you are arranging the sentences. I think you would benefit from reading and learning about English grammar. Perhaps you may find some books about English in a library or a bookstore? Keep working hard.