Even though negative thoughts may be disruptive and cause you to feel inadequate, they are meant to be beneficial. Some psychologists even believe that a dose of pessimism can be healthy because it forces us to be more resourceful and reflect when things are not going well for us. If you've been having negative thoughts, know that you're not alone. Negative thinking makes up a large portion of our thoughts. Negative thinking might even be inherent in the psychological makeup of human beings. Like our ancestors, we're constantly taking in our environment and trying to make it better. This process becomes a problem when we start to think that these negative thoughts are true. If your negative thoughts are affecting your behavior or interfering with your daily life, then they are causing a problem and you may need to seek the help of a mental health professional. Too much negativity may lead to an intensification of your problems because you expect things to go wrong. One way to describe this phenomenon is the self-fulfilling prophecy which refers to the cycle of having an expectation or thought of a situation that creates a new behavior that makes the expectation of the situation true. For example: You think you will fail the test in English tomorrow. Because you think you will fail no matter what, your behaviors or action is not to study for the test. And then you fail the test.  The long term consequences of this are starting to think that you are stupid or a bad test taker, which leads to more problems with test taking. Negative thinking comes in many different forms. Being aware of these forms may help you to know when you are having a negative thought and work to counteract that thought. Not all negative thoughts will fit into a category, but there are some common types of negative thoughts that you may be dealing with.   Filtering is when you ignore any positive aspects of a situation. For example, if you passed a very difficult course with a C+, you were hoping for an A, you might think to yourself “I am...

TL;DR in Vietnamese:
Hiểu rằng những suy nghĩ tiêu cực cũng có vai trò của chúng. Biết khi nào những suy nghĩ tiêu cực trở nên rắc rối. Lưu ý về các kiểu suy nghĩ tiêu cực. Ghi nhật ký suy nghĩ để hiểu rõ hơn điều gì đã thúc đẩy các ý nghĩ tiêu cực ở bạn. Xác định những ý nghĩ vô thức của bạn. Xác định kiểu suy nghĩ tiêu cực mà bạn đang có. Xác định những lo âu tiềm ẩn. Xem xét gốc rễ của những ý nghĩ tiêu cực. Thách thức những ý nghĩ của bạn. Xác định những lĩnh vực cần thay đổi.