I'll try to make this quick (in class)
This summer will be a year since I had SRS, I'm 24 if age plays into any of this
The worst pain for me over the entire time was a lidocaine injection into my hand prior to my IV placement (yes really)
Extended period of laying on my back hurt my ribs, I'm 5'8", 123 lbs, so had no extra weight pressing on my ribs
The actual pubic area felt like a big bruise all over, not bad not great; pain generally all gone within about a couple months (I can't recall exactly, it's very gradual)
Morpheine in the hospital, down to hydrocodone before discharge, down to tylenol before 2 weeks passed
I was out of bed the second day after surgery, baby steps around the recovery ward, there's a "swing" technique to get out of bed - raising the knees almost to sit up position, tipping onto one hip, swinging yourself around to the side of the bed, lifted gently out onto your feet, back in bed is the same thing reversed; upper body strength really isn't needed, just a feel for momentum and motion

Wasn't literally standing under the shower until near the end of week 2 (this usually is to do with bandages and stuff)? But of course sponge bath is fine, I tipped my hair into the shower to wash it before this though
One important thing to note is one of the biggest obstacles for me was just fatigue, this is from blood loss, anesthesia, drugs, so although in terms of pain down there I'd be all fine to take a shower, I just couldn't stand and move around in the shower for that long, the first time I tried taking a shower I just wasn't able to get enough oxygen into me from laying doing nothing for so long, so I had to get out of the shower and lay down, I found it's little side things that pop up that pose challenges, not necessarily the site of the surgery itself
And like you said a lot of it is dependent on the individual, the surgeon, and other factors like diet, predispositions
P.S., you're so beautiful Sophia!!