To tell the truth, I'll find a way to let you go if you do this! ! ! From a management point of view, your character is difficult to manage when you are an apprentice. When you are proficient and qualified, you will become more and more overbearing, and you will bring this to others.
Instead of being annoying, it is better to shout that the master will not drop a piece of meat to make others like you! ! !
I'm just a personal opinion, don't be angry!
However, if you pay money to learn nail art and agree in advance that you will only learn nail art and not work, it is a boss's moral problem. You can fire with the boss, or you can play hooligans and affect her business. If you don't refund your money, I'll smash your shop and see if you have the ability. If it is paid study, there must be a study schedule, what to teach for several hours every day, and so on!