Promise yourself that you'll wait 48 hours before doing anything. Remember, thoughts don’t have the power to force you to act. Sometimes extreme pain can distort our perception. Waiting before taking action will give your mind time to clear. Suicidal thoughts can feel overwhelming, and there’s no reason to fight them alone. Ask a professional for help by calling emergency services or contacting a suicide hotline. These services have trained people ready to listen to you and offer help 24/7. Suicidal thoughts and impulses are very serious. Asking for help is a sign of strength.   These services are free and anonymous. You can also call 911 (US), 999 (UK), or your emergency services number to be connected with a trained professional. If you are a university student, your university may have a suicide prevention line, often through campus police. If you have called for help and are still experiencing suicidal thoughts, you need to go to the emergency room. Ask someone you trust to drive you, or call emergency services.  In the United States, it’s illegal for emergency rooms to turn you away in an emergency, even if you don’t have health insurance or can’t pay.  You can also look up mental health crisis centers or suicide prevention clinics in a directory. You may find low-cost options there. Your risk of suicide is increased if you’re alone with suicidal thoughts. Don’t bottle them up or keep them to yourself. Call someone you love and trust and share your thoughts with them. Sometimes just talking to a good listener can help you cope and be enough to calm your thoughts. Stay on the phone, or ask the person to come over and be with you so you’re not on your own.  You may feel worried or embarrassed about talking to someone about your feelings. The people who love you will not judge you for sharing these feelings with them. They will be glad that you called rather than try to handle everything on your own. You can't predict when new options might appear. It's impossible to know what might happen if you just wait...

TL;DR in Chinese:
推迟所有计划安排。 立刻寻求专业救助。 去医院。 打电话给爱人或信得过的朋友。 等待救援。 绝对不要酗酒或吸毒滥药。