I envy you very much. You are only 18 years old and have had three years' work experience. There is a good saying, don't bully the young and poor, and there are infinite possibilities for young people.
There are many departments in the hotel industry. I suggest you go to a high-star hotel. If you don't like being a chef, you can do something else. Their requirements for academic qualifications are pitiful.
In fact, you should keep learning when you are working. What I mean by learning includes work skills and other aspects, such as foreign languages. If you want to develop smoothly in the hotel industry, foreign languages are necessary.
I don't think you've really thought about how to plan your life in the past three years. I suggest you think about yourself first. Do you want to continue to develop in the hotel industry? By development, I don't mean to let you be a waiter all your life. The particularity of the hotel industry is that no matter how high your education level is, you should start from the grassroots level, and you have an age advantage that others don't have.
If I were your age, even if I only had primary school education, I would be confident to do better. For example, our hotel is a five-star foreign hotel, and the personnel director has a technical secondary school degree, or took the exam after work, but no one can tell, because she has been studying continuously for more than ten years after graduation, and now she is going out. Who will say that she is a person without education and ability? ! She started from serving dishes and went to the HR director step by step. She entered the hotel at the age of 19 and became the HR director at the age of 35. The monthly income is conservatively estimated at around 111,111. Think for yourself and don't fix yourself.