Yes, there are 6 open tones and three checked tones (syllables that end with p, t, k). And while you can say they're different tones since one type is shorter than the other, I think I've only seen one romanization system that uses 9 tone markers instead of six. You have three level tones, two rising, and one falling. It'll seem a little overwhelming at first, but don't worry, it gets a lot easier the more you practice! Stick with it and you'll do fine. :)

There are 9 tones in Cantonese spoken in Hong Kong.

In fact 9 tones, I am HongKonger.

9 in total

6 pitch levels, but linguistically 9 tones because to define a tone, not only the pitch level matters, but also the manner in which it is pronounced.