Dành thời gian cho sự đau buồn. Xóa bỏ thư từ cũ. Ngừng kết bạn (Unfriend) hoặc ngừng theo dõi (unfollow) người đó trên mạng xã hội. Loại bỏ ảnh chụp. Viết về cảm giác của bản thân. Không đổ lỗi cho bản thân.

Given the above summary, write a detailed text in English for it.
Losing a friend can be very painful. Pretending like it didn't happen or repressing the hurt you feel may seem like a good idea in the short term, but ultimately it will make it much more difficult to move on. Acknowledge that you have lost something important to you and that it is okay to feel sad about it.  Don't be afraid to cry. Crying can be a great release of emotion. Listen to some sad music or watching a sad movie can actually be very cathartic. It reinforces the fact that you are not alone in how you feel and can give you hope that better times are ahead. Don’t hang on to text messages or emails that you might be tempted to go back and reread. Going back to these time and time again will only prolong the loneliness and hurt after a friendship ends. You may want to save copies to a USB drive and then give it to a friend or family member in case there comes a time when you feel it would no longer be too painful to look back on old times when the friendship was still solid. Seeing what your friends are up to without you will just cause you to dwell on the past instead of looking toward the future. You’ll heal more quickly and be able to let go more readily if you aren’t constantly exposed to their Facebook posts. You don’t necessarily have to throw them away, though you could. Get rid of anything that reminds you of your friends like souvenirs or gifts. A helpful way to process feelings is to write them down. You might have questions about what went wrong or be feeling anger towards your friends. You can get all of these emotions down by writing a letter to you friends that you won’t ultimately end up showing them. When you’re done you can tear the letter up or put it away in a drawer. The purpose is just to process how you feel. Avoid seeing this as a reflection on who you are. There are lots of reasons why friendships end. Even if you feel like you had some hand in your friend or friends not wanting to remain friends with you, know that all relationships are 50/50. You can’t control other people.