It is Sunday today, but for me it is like a normal day when it comes to working. I don't mind working on Sundays because I know that on weekdays I work less than others. I just have a day off when we go travelling. (I don't quite understand the previous sentence, but be careful not to overuse 'literally' like some native speakers do. It can become meaningless) It seems like I work hard but it is not that at all. Because I am a freelancer, it is up to me how hard I work. I am trying to be more active to make enough money. I now realize that I must work harder to be like a normal person. I hope it is as easiy said than done.

It is Sunday, but workwise it's been feeling to me like a normal day. I don't mind working Sundays because weekdays I work less than others do. It's like I have a day off whenever we go travelling. It might appear that I work hard but it's really not so. Since I am a freelancer, the choice of how hard to work is all mine. I am trying to be active enough to cover my expenses. I have now realized that I must work harder to live comfortably. I hope I can do it, but it is easier said than done. You won't find "workwise" in a dictionary. It is not a word. The prefix "-wise" can be added to just about any English noun. It has the meaning "in the manner of". It is conventional usage, not slang or colloquial. However, you shouldn't use it too much. Your first sentence is a perfect place for it.

It is Sunday today, but for me, it is like a normal work day. I don't mind working on Sundays because I know that on weekdays, I work less than others. I even have a day off when we go traveling. It seems like I work hard, but I don't. Because I am a freelancer, it is up to me to find work. I'm now realizing that I must work harder if I I want to make more money. I hope I can do it. It is easier said than done!

It is Sunday today but for me it's like a normal day when it comes to working. I don't mind working on Sundays because I know that on weekdays, I work less than others. I just literally have a day off when we go travelling. It seems like I work hard but it is not that . Because I am a freelancer, it all depends on me to be hard working or not. I am trying to be more active to make enough money. I now realized that I must work harder to be like a normal one. I hope I can do it as it is easy said than done.