Counterpoint: I sacrificed a lot of my 30s to become debt-free. 40 now and pretty close to FIRE (well I don't know about the retiring part, but the FI part is almost there).
It was totally worth it.
In the end, it's a personal decision. I do agree that if you find the majority of weeks to be acutely miserable, then you should honestly ask yourself if you're giving up too much present for an uncertain future.
I did as well, and we've remained debt free for a while. We're now in that cash poor phase since I seem to love pre-IPO companies :) Was it worth it? To some degree, but at the same time there are some big things on the list that we will probably have to defer for a while now that we have a school-aged child, a pet, etc. All I can say is, do some of those things, and don't fixate too badly on sacrificing everything to retire early. Family, friends, relationships matter, and so on.
It was totally worth it.
In the end, it's a personal decision. I do agree that if you find the majority of weeks to be acutely miserable, then you should honestly ask yourself if you're giving up too much present for an uncertain future.