Just be yourself. 
If you really can't forget he or her, you can try to accept it.

Make yourself busy! If you bury yourself into the things you really love or even look at the sky. I think it will be better for you if you can really forget him or her. Please remember that every one belongs to himself rather than others. Just love yourself and the people who love you.

Just be yourself, live in the moment, and then you will forget him forever.

Forgetting a crush you like very much can be a challenging process, but it is possible. Here are some suggestions that may help you gradually let go of these feelings:

Accept your feelings: First, acknowledge and accept that you have strong feelings for this person. Recognizing your emotions is an important step in moving forward.

Create distance: Try to create some physical and emotional distance from your crush. This might mean avoiding places where you know they'll be, unfollowing them on social media, or limiting your interactions with them.

Focus on yourself: Redirect your energy and attention towards personal growth and self-improvement. Engage in activities that bring you joy and fulfillment, such as hobbies, exercise, or learning new skills.

Stay busy: Keep yourself occupied with a variety of activities and responsibilities. A busy schedule can help distract you from constantly thinking about your crush.

Talk to someone: Share your feelings with a trusted friend, family member, or therapist. Talking about your emotions can help you process them and gain perspective.

Set realistic expectations: Understand that forgetting someone doesn't happen overnight. It's a gradual process that requires patience and time.

Practice self-care: Make sure to prioritize your physical and emotional well-being. Get enough sleep, eat a balanced diet, and engage in relaxation techniques like meditation or yoga.

Avoid rebound relationships: Try not to jump into a new relationship just to distract yourself from your crush. This can lead to more complications and heartache.

Reflect on the relationship: Take some time to reflect on why you were attracted to this person and what you can learn from the experience. This can help you gain closure and move on.

Embrace new opportunities: Stay open to new experiences and people. You may find that as you focus on your own growth and happiness, new and more fulfilling relationships will naturally come into your life.

Remember, everyone's experience is unique, and what works for one person may not work for another. Be kind and patient with yourself as you navigate this process.

Find the activities you like to begin your next joyful life.

Find another one to be your new crush.

Girls or boys, I really want to say that you musn't waste your beautiful time in a person who have no effort.
Just stay your heart clam, do anything you want and make a determination to improve yourself. You can watch TV series that you like. You can listen to music. You can travel the word and so on!
Please, a person isn't the driver of your progress!!! As an old saying goes, "You should bloom like a flower."

Actually it's hard.

I can't guarantee which method will work.

Yes, only time.

Although it's a bad way.

Brace for your life. Let you busy.

Well, if you have already known each other, if he is not a student, or doesn't have any other compelling reasons, I don't really believe in the sentence "I don't want to fall in love at this stage". And what did he say？You can send me Wechat if you want？Oh my god, it is so ridiculous. You just like him, which doesn't mean you have to be selected by him. You are equal. He can decide your relationship, and you can as well. I know this feeling is not good, but please love yourself more.