I usually drink more than five glasses of tea a day.

Don't worry, the sentence you have written is fully acceptable for everyday English! Most native speakers will say exactly what you have written while relying on context to provide the full (and probably obvious!) meaning. So, 100% correct for style/ usage.

You can safely ignore what follows but I thought I would add it in for a fuller explanation:
Other ways of writing the sentence:
1. Usually, I drink more than five glasses of tea a day.
2. I drink usually more than five glasses of tea a day.

Sentence 2 sounds a bit awkward but in my opinion is technically correct since "usually" is qualifying the quantity rather than the "drinking" itself (I mean, how else would you take tea?! It has to be drunk!). Most people will use sentence 1, or your own sentence as above. As, I say, you can safely ignore this advice for everyday English, but you may wish to think about it when you use other restricting adverbs such as "only". I can help you further if you wish.

I don't care about types of tea, I love all of them; black tea, green tea, oorong tea, pure tea and white tea.

This is fine.
Consider an alternative:
I don't care about types of tea. I love all of them: black tea, green tea, oorong tea, pure tea and white tea.

The full-stop (period) after "tea" adds emphasis to the sentence that follows.

I enjoy the smell of the tea, the distinctive flavor and tea ceremony.

This is fine. It could be written differently but it is really a matter of style.
Alternative spelling for "flavor" = "flavour".

Possible alternative:¶
1. Drinking tea also reminds me of athe good old days.¶
2. Drinking tea also reminds me of a enjoyable experience in the past.

It was in high school when I learned it for the first time.

Possible alternative:
It was in high school that I learned about tea-drinking for the first time.

And there, a monk treated us to tea and snacks.