I always make mistakes when I work as a hotel receptionist, and my speech is childish, like 250.

Actually, no, don't you think that's cute? First of all, recognize your own shortcomings, then remind yourself often and try to correct them, and you will become better. You are not brave and no one is brave for you. No matter what happens now, I will go my own way. No matter what others think of you now, you should regard them as your own motivation. Try to change yourself and prove it to them. Read more books when you are free, improve your taste and make yourself elegant. Sometimes it's not that I don't want to change, but that I dare not. Come on, believe in yourself. I'm glad I'm still alive. I still have a chance.