What is the experience of liking someone but not worthy of her?

Like someone you don't think you deserve, it's like looking at the chocolate in the window when you were a child, clutching a few cents in your hand and almost drooling. The happiest thing is to have them. If you can have it, you would rather exchange everything you have. But you can only watch from a distance, you can't play. That's the feeling. I obviously like her. But you don't have the courage to contact. You think standing in front of her is a joke. It will make you feel inferior and hurt you. Why can't you stand with her? I even hate myself. Seeing her standing with someone else, I will envy that person. I will often imagine myself as that person. I will feel that I am excellent and worthy of her, but I will be more depressed after waking up. I feel very happy not to see her every day. I like her very much, but I dare not say. I'm afraid it will become a laughing stock, make others laugh at you, and make her think that you are overreaching. But if you like her, you have to work hard for her.

I remember when I was in the third grade, I fell in love with a boy in my upper bunk. The boy is very powerful, handsome and studies well. He is the hero of our class. But she's ordinary. She has always been quietly kind to him, but one day she found that boy was with someone else. She was very sad and angry, so she said she liked him. At that time, we all thought that she was not good enough for that boy. During that time, she had a bad life, but she has been working hard, running every day to lose weight, studying hard and making herself excellent. In the end, although I was not with that boy, I really became very good. Now I have my own boyfriend and have a good life.