The most important thing to remember when brewing tea is simply this: if it tastes good to you, then you brewed it right! That said, there are brewing best practices and some variables you can play around with to determine your perfect brew.
The three main variables in brewing tea are the amount of tea, water (temperature and volume), and time.
In Western-style brewing (how most cafes and home-brewers in the US make their tea), you have a rather large ratio of water to tea and a relatively long steep time. For traditional brewing, you use a smaller ratio of water to tea and steep for shorter periods of time. Neither way of preparing tea is more correct than the other, though you may find that you enjoy certain teas prepared in one style over another.