Senior nurse, college degree or above. If you don't change careers, you should start with nursing. Opening beauty salons (especially medical beauty salons) or clinics can only be applied by doctors independently, and nurses are just one of them. Because you studied high nursing, you can't escape nursing work. There are no shortcuts, no other options. It's like asking a question: I learned to drive. What can I do besides not driving? What do you think you can do?
Besides, what you said about "not serving the people" is actually problematic. Every one of us who lives in society is "served" and "served" by others. Just in different forms. Perhaps, from the perspective of direct contact with patients, nurses seem to be inferior and are all serving people, but not everyone's skills and level are competent. Don't underestimate this industry.