I personally have very clear memories of the years where I worried constantly about finding and keeping enough work to pay rent, left problems with my health unaddressed because I couldn't afford to fix them, and stayed in a bad relationship because my partner had a place to me to stay and a car I could take to job interviews.
If you had asked me then I would have said my life was fine b/c I had friends, plenty of cheap beer, and didn't really know any better. Now that I'm also solidly in the middle class and can afford luxuries like an entire house I share with just my wife, regular meals out, and leisure travel I would describe those years as "strained" and "challenging" at best.