Be yourself, improve yourself where you can, and accept aspects of yourself that you can’t change. Don’t try to change who you are just to please others.  Make a list of all the things that you like about yourself and another of things you’d like to improve. You can ask friends and family to help you build your list, since they may think of things you might not. Think of specific steps you can take to improve, for example: “Sometimes I overreact and snap at other people. Every time someone makes a statement, I should pause before responding and think about what to say before saying it.” Keep this list somewhere you will see it often, such as on your mirror or closet door. Read over it at least once every day. Accept things about yourself that you can’t change. For example, you might wish you were taller, but that's not something you can change. Instead of focusing on why you wish you were tall, try to think of little things that are nice about being shorter, like the fact that you’ll bump your head less. Try to think of things about yourself that other people would likely envy and want to replicate. Try not to focus on failing, embarrassment, or on what other people will think if you do something wrong. If you find yourself reliving embarrassing moments, consciously redirect yourself to something you have accomplished instead. Break down goals into small pieces, and visualize yourself succeeding at each step.  For example, if you want to be more confident when having conversations, break the goal into small parts: maintain eye contact, listen to the other person, nod when they make a point, ask them questions, and offer honest responses based on your own experiences. If an outcome doesn’t turn out according to plan, try to learn from it instead of getting embarrassed. Write down what you would do differently next time to help solidify what you have learned. Remember that everything is a learning process and that no one is great at everything, especially on the first attempt. Try not to assume that everyone is...

TL;DR in Vietnamese:
Chấp nhận bản thân. Hình dung về thành quả thay vì nỗi sợ bẽ mặt. Tránh nghi ngờ hành động của bạn. Đừng để sự phán xét tiêu cực của người khác ảnh hưởng đến con người thật của bạn. Cân nhắc khi người khác đánh giá bạn với ý tốt.