According to your description of buck teeth. You have tried very hard to keep your mouth shut during the day, so the situation like your buck teeth has arrived and needs to be corrected. Because such a situation belongs to the irregular arrangement of upper and lower teeth, which affects one's beauty and may also affect one's diet. Sometimes even when you speak, it will affect your accent. Therefore, in your case, it is better to correct your teeth. Generally, you are allowed to wear braces or something. Then it may take some time to adjust the order of the upper and lower teeth. Try to adjust as early as possible, and the sooner you correct it, the less time you can spend. If you don't solve it early, you may have some teeth that are prone to pain or damage. Then, after wearing braces, you should pay attention to daily brushing and cleaning, and avoid eating some sweets and the like. There are some hard foods to eat less. Improving through these is the best protection for teeth. Finally, I suggest you have a checkup during this time to see if your teeth need to be adjusted. If you need to adjust, you can do it earlier, also for your own aesthetic consideration. I hope it will help your teeth.