Since you want to care for yourself, you don't want to hurt yourself in any way. Worrying can hurt you, so remind yourself of that. Usually, when people are able to be honest with themselves, they have an easier time letting go of the worry. Breathe in through your nose and then breathe out through your mouth. Count your breaths since worry can be exasperated with high-stress levels, this will reduce those levels.  If you continue to worry as you are breathing, allow yourself to consider it for a moment and then breathe it away. Use your breath to blow the worries away from you. Do as many you need to feel relaxed. Some people will do 10 breaths, while others will do breathe in and out 20 times. You don't even have to decide before you start this technique. Allow yourself to gauge if you need to continue when you hit 10 . Learn to control your worry by allowing yourself only 30 minutes. Once your 30 minutes is up, tell yourself that you need to focus on other things. It may help to set a timer so that you are not tempted to worry after your time is up. As soon as you start to worry, tell yourself to stop. The action of telling yourself to stop replaces the negative thought . You can do it aloud or you can use self-talk to tell yourself. Many therapists use this technique to help people avoid negative thoughts. As soon as a worry enters your mind, telling yourself to stop can help you let go of it quickly. Just keep in mind this is a learned behavior. It may not be effective at first, but after some practice, you may just be able to stop any worrisome thought in its tracks. This techniques works better for some people more than others. If you find this technique doesn’t work for you, try mindfulness instead. Place a rubber band  on your wrist and snap it every time you worry. This is a type of thought stopping and it can help you to stop worrisome thoughts, then focus back on the present. Studies  show that people who use their hands are less likely to worry. When you're focused on whatever is in your hands,...

TL;DR in Vietnamese:
Tự hỏi bản thân xem liệu lo âu có giúp ích gì cho bạn hay không. Đếm nhịp hít thở. Cho phép bản thân có 30 phút để lo lắng. Sử dụng kỹ thuật ngăn chặn suy nghĩ. Tạo điều kiện để bản thân ngừng lo lắng. Cầm một vật gì đó trong tay.