First of all, Singapore is really the best choice for your hotel management.
Second, you must know what you used to do, what would you like to do, serving food and sweeping the floor? Be sure to do something that will add luster to your job search in the future.
Third, how long can the internship last? Can I stay in Singapore? If it's only three months, it doesn't make any sense.
Fourth, economic factors. The salary is 500- 1500, which is too big a span. WP (minimum work visa, almost no academic requirements) should have a treatment of about 800- 1000 yuan to go to Singapore. You graduated from junior college. Although I have no work experience, I should be able to get an SP (Advanced Work Visa), and my salary is about 1000- 1500. With your own air ticket and 5000 RMB in advance, you may not be required to earn much money during your whole internship, but at least you can't let your family bear too much for you, right?
Generally speaking, the internship in Singapore is a good experience, but you should consider whether the opportunities offered by the school are worthwhile. Because you can apply for a job opportunity in Singapore after working in China for two years.
I hope I can help you!