It was one of the most miserable experiences of my entire life.
And I've been homeless, slept under a bridge, slept in the rain when more violent types took our camping spot under the bridge, eaten food from a dumpster on the regular, that's just the short list for comparison for you.
I'm a masochist and somewhat of an extremist, I enjoy a bit of drama, so it was also one of the more interesting experiences I've ever had.
Most people will tell you it's one of the harder experiences they've had.
It depends on what your rotations are like.
For me, I woke up at 4 am and made it to the hospital around 4:30-5 am. (This gives you enough time to literally roll out of bed, wash face, brush teeth pat hair, make a cup of tea and instant oatmeal to eat on your commute. For me I walked to the hospital but I found I could easily eat oatmeal while walking. I think rounds started at 6 am, so this gave me the time to pre-round and update the list and do a few last minute didactic type stuff, or look up patients. We were usually done around 4-7 pm depending on how the surgeries went, but there was the after rounding to do. I don't really remember ever making it home before 6-8 pm. Because no matter how the surgical day went, with reading up on patients, getting ready to be pimped/the shelf, and required didactic activities like writing up H&Ps and other stuff, there was always enough to do until 8 pm.
I say this, because at that point, this meant in the evening, there was really only enough time for me to handwash and hang to dry my compression stockings, hop in the shower, have a simple dinner/wash the dishes, take care of my cats, perhaps have a short conversation with my partner, and go to sleep, and even then you're getting less than 8 hours a night.
Realistically, I was averaging between 4-6 hours a night. Doing that 6 days a week for a month was brutal. Plus I found surgery very physically taxing. I noted in the other thread there is an ENT resident transferring out just because their neck and back can't take it. Consider that. I talked to a lot of surgeons who had various complaints, some that really affected their career to a huge extent.
Laundry, taking out trash, grocery shopping, anything like that, had to wait for my one day off a week.