17 years old. Can you generally work in a five-star hotel without education and experience?

No, five-star hotels serve high-end customers, so the requirements are higher. You must have a certain degree of relevant work experience or graduate from a related major, with a good image and comfortable guests. You are underage. Even a four-star hotel wouldn't want it. I suggest you work as a waiter in some small hotels first. When you have accumulated work experience, you can develop in a bigger company, climb up step by step and keep your feet on the ground. I can almost achieve my goal in my early twenties. Anyway, young people now have plenty of time and learning opportunities. Don't try to eat a fat man in one bite. There is no such thing as a good thing in the world, and now there are many talents.