You should create your own, but I'll amke mine as an example.
November 5th, 1883
Once again, today was not easy at all. I just turned 13 a few days ago, but I haven't had a moment to celebrate, working from morning to night. I have a few minutes to write in this diary and then I must sleep if I want to work properly the next day. I work in a factory with big machines, so it's easy to get hurt badly. Today and girl got some of her hair ripped off, and the other day a boy almost lost his full finger. These things happen often and I'm lucky I do't get the bigger and harder jobs and that I'm not 8 or 9 like some workers. It isn't as bad as I make it out to be. I do work from dawn to after dusk, but I come from a family that isn't dirt poor and I do get enough food to get by. Sadly, must say goodbye and sleep if I want to function correctly tomorrow.
Goodbye,
Sarah (fake name)