If you have a clear path for what you want in life, you may be less likely to be swayed by temptations that will hurt you in the long run. Write down the major things you want out of life: Is it a good career? Having a family of your own one day? Becoming financially wealthy?  You don't have to lay out very detailed steps for achieving these goals as part of this exercise; instead, remember to keep your overarching goals in mind so you stay on track in your life. To form personal goals, it is important not to set the bar too high or else you will fail and this can kill your motivation. Instead, set some big goals (e.g., learn how to code software), but break those bigger more distal goals into smaller more achievable goals (e.g., read 1 chapter of a software coding book every week). In this way you can see tangible amounts of progress as you work toward accomplishing your more distal goals. Negative feelings can reduce self-control and make it more difficult for you to control your mind. One way to counteract negative feelings is, simply, to smile. Although the idea that feeling happy causes you to smile is more intuitive, the facial feedback hypothesis suggests that smiling can actually cause you to feel happiness. Research shows that spending on others can increase happiness and well-being. Happiness and well-being can increase your self-image and reduce negative feelings that make self-control more difficult. Exactly how you spend your time or money on others isn't that important. What matters is that you and those you are helping find it valuable. One way to control your mind is to make it more difficult for it to get what it wants. This extra effort will make it so that part of your mind is less likely to win out and influence your behavior. For example, if you want to control the part of your mind that wants to watch TV when a part of you wants to cut down on your TV watching time, you could put your remote control in a difficult to reach spot.  Another example is that if you keep hitting the snooze...

TL;DR in Vietnamese:
Lập kế hoạch cho cuộc sống. Mỉm cười dù không vui. Sử dụng thời gian và tiền bạc cho người khác. Tự tạo trở ngại. Trao thưởng cho nỗ lực kiểm soát bản thân thành công. Trừng phạt nỗ lực kiểm soát bản thân không thành. Giảm căng thẳng.