Sick and Tired

I am not feeling well today. It's physical but I feel that it's more on psychological. I am tired of working overtime and much workload. It is more demotivating to work if your office mates are inconsiderate especially those superiors. They want you to just work even if you're tired already and want you not to make mistakes. They even blame you if there are deadlines not met and mistakes committed by other people. Yes, you should be dedicated to your work but if it's over, your physical health might be affected and also your mental health.
I can't feel the breeze of the holiday season because we work on holidays. I understand that it is now peak season but why do they let you spend the holiday at the office. Some of them don't approved the filed vacation leave but they have the right to be on leave. It's a big sigh.