I work an absolute maximum of 40, usually 37/38. I refuse to go over 40, I've done this in the past. I wish I could go down to part-time but I can't afford to financially like many people.
I know people who do 50-70 hour weeks and no idea how. Even now I don't always feel like I have enough free time, and I don't have children or anything.
I had a community care job a couple of years ago in which I lacked the confidence to say no and they took full advantage of me, I was out from 7am-9pm several days in a row until I started speaking up.
Also, how long is your working day?
I used to do 12 hour shifts in a care home and found it far too long. Some people do 5 of these in a row and I've no idea how they get the time to do anything else like cooking or cleaning. I've gone down to 6 hour shifts, people have commented that I seem to have a lot of energy, but I find them a breeze now after doing 12h.