Good luck!!
I'll be honest, the first couple weeks were tough, although it was as much exhaustion and and being physically drained as anything else. However, my aftercare regimen only ate my life for the first month or so, and you'll get the hang of it pretty quickly.

(I think McGinn requires a bit more dilation, so of course my experience was different than yours will be, but still.)
If it helps, I was never in severe pain, or at least the pain was well-managed enough that I never minded it. On that traditional 1-10 scale, I'd say the pain from the actual surgery never exceeded a 4, and I only took the heavy-duty painkillers for the first two days; I was using Tylenol in normal doses by day 3 and nothing at all by the time I went home a week later. (I had an unrelated, uncommon issue with bladder spasms that meant I needed oxycodone for days 4-7, but the actual unmedicated GRS pain was maybe a 2 by then. I might well have been able to quit all painkillers sooner if not for that.) It wasn't *fun,* but it was tolerable, and the same was true for the couple dozen women I met while I was there.
You'll do fine. In fact, this waiting period is often the hardest; once it's done, you're too busy to worry!
(And the dilators... hee. Even my wife was scared the first time she laid eyes on them! [I was still too naive to realize how big was "really big," so she also snickered at me.])