Article in English: Everybody feels shy or insecure from time to time, but if you feel inhibited by your shyness, it is probably because you have been telling yourself you are somehow inadequate. These feelings of inadequacy are reinforced on a daily basis by the negative things you constantly tell yourself. Learn to pay attention to negative thoughts and distinguish the rational thoughts from the irrational ones.  Do you constantly tell yourself you're unattractive? Do you tell yourself you're boring? That you're weird? Irresponsible? Negative thoughts like these are what keep you from feeling confident enough to be a social person. More importantly, they keep you from living a fulfilling life. Until you've addressed your insecurities and told yourself you're a worthy person, you won't be able to truly socialize. Sometimes we get so accustomed to these negative thoughts that we no longer notice them. Start paying to attention to the kinds of thoughts you are having. Once you have learned to recognize when you are having a negative thought, you can slowly train yourself to silence these thoughts so that they no longer inhibit your life. When you catch yourself having a negative thought, try one of the following exercises:  First, acknowledge that the thought is there. Now, close your eyes, and visualize the thought in your mind's eye. Label it as a "negative" thought, and then let it slowly dissolve until it disappears completely. Turn a negative thought into a constructive one. Let's say you're overweight, for example. Instead of constantly telling yourself "I'm fat," tell yourself "I'd like to lose weight and get healthy so that I'll have more energy and feel more attractive." This way, you can turn a negative thought into a positive goal for the future. For every negative thought, think of three positive thoughts. Being a positive person will also make it much easier for you to socialize and make friends. Nobody wants to be friends with a Negative Nancy. Unfortunately, we spend so much time trying to improve ourselves that we...

Summary in Vietnamese:
Chú ý đến những nỗi bất an của bạn. Học cách đối phó với những suy nghĩ tiêu cực. Viết ra những lợi thế của bạn. Ngừng so sánh bản thân với người khác. Hãy nhớ rằng bạn không phải là trung tâm của vũ trụ. Quên đi nỗi sợ bị từ chối.