You're correct that the vagina is self-cleaning, and using just water is generally sufficient for cleaning the external parts, like the vulva and labia. Letting water touch the entrance of your vagina is fine, but it's important to avoid inserting anything inside, as that can disrupt the natural balance. Regarding odors, it's normal for there to be some natural scent from discharge or during your period, but if you’re concerned about lingering smells, you might consider rinsing the area more thoroughly with water. Just remember that everyone’s body is different, and as long as you’re not experiencing any irritation or unusual symptoms, it sounds like you’re on the right track! If you have any specific concerns or questions, it might be a good idea to consult with a healthcare professional for personalized advice. Hope this helps!