Should I not get any water in my nose at all?

Is it bad if even a single drop touches my nose? Does that apply to the outside as well as the inside of my nose? I searched and found that it actually causes bruising to my eyes, so I bought an eye pack in advance;; I'm thinking of doing both nose and chest surgery, but since I've had surgery on my nose, I've grown up sitting up;; Is it better to sleep sitting up than lying down? If that's better, I'm thinking of sleeping sitting up. But won't it be bad to sleep sitting up on my chest after surgery? I want to do both separately, but I'm so scared that I'm going to do both while I'm under anesthesia. Sob... I'm thinking of doing my nose with a surgical mask. But after rhinoplasty, is there anything that can be used to fix it separately other than compression tape? Personally, I'd like to have something like a metal fixing bar that can be used to fix it on both sides, lol. I'm scared. I'm afraid that something might go wrong. ㅠㅠ