You can sit on a toilet and try to insert it that way, but many women find it easier to assume an alternate position. You can place one leg up on the toilet seat for wider access to your vaginal area. Or, you can try a squatting position, spreading your legs more apart. Feel free to explore various options to see what works the best for you. For the first time, some women prefer to avoid the bathroom entirely. Instead, you can lay back on your bed and open your legs. Or, stand a use a chair for balance. Use your finger to locate the entry to your vagina, as you saw in the mirror before. Then, guide the tip of the applicator to the opening. If you are inexperienced in tampon use, you will find that this is less scary and easier to do than moving around the applicator in search of an entry point. Position your middle finger and thumb on both side of the grip, holding firmly. Your middle finger can then go to the end of the plunger. Of course, you can experiment with this hand hold until you find a position that works the best for you. The key is to keep a good grasp of the tampon in the grip area. Gently guide the applicator tip into your vaginal canal. The entire applicator should fit inside you with the grip portion and your fingers staying outside of you. So, the barrel portion is inside and the grip is outside. The applicator should be in a position that is parallel to the floor. If you try to push the applicator vertical, you will hit the upper wall of your canal.  If the area is sufficiently lubricated, the tampon applicator should slide smoothly in. You should not have to push it hard or jab it at all. This is the step that presents the most problems for first-time users. If you need to, take a few deep breaths and pause before moving the applicator in. Flex your middle finger on the end of the plunger and push down until it is flush with the applicator. Keep your hold on the grip the entire time. When the plunger is fully down, then tighten your fingers on the grip and pull the applicator out of your...

How would you rephrase that briefly using Vietnamese?
Thực hiện ở tư thế ngồi hoặc ngồi xổm. Xác định vị trí lỗ âm đạo. Cầm vào phần gờ của chiếc tampon. Nhét phần đầu của dụng cụ đặt tampon vào âm đạo. Ấn que đẩy vào trong. Dừng lại nếu thấy đau. Lấy tampon ra ngoài bằng cách nhẹ nhàng kéo sợi dây. Thay tampon thường xuyên. Thử lại nếu lần đầu tiên không thành công.