I care about other people's opinions very much, and I want to set up a stall to do business for fear that my friends and classmates will see me smile. Do what,

Friend, you should be confident. There is only one you on earth, and you are unique in the world. Life is short, do what you want, fear every life and be kind to everyone. As long as you don't sell fakes and have a clear conscience, others won't laugh at you. Of course, it doesn't matter if you have jokes, because no one is perfect, and you are not a saint, so it is impossible to satisfy everyone.