I experience relief afterwards when it's over, but nothing that comes close to pride or accomplishment. Just the vague recognition that it's over and the dread of having to do it again, knowing it won't even be easier or will end better than the first time.
Seriously, I've never once felt pride in my entire life. Not after graduating, not after getting a job, not after becoming a father. It all feels so very banal and mundane, what "achievement" in that could possibly exist?
I saved your post because it put into words some things I can never explain as well as you just did. My spouse is very supportive but it's always nice to have a well explained description of something rather than me kinda rambling on as she gets disinterested and I don't make my point well. You did well. It was a good rant, sometimes that's needed, I hope it was cathartic.