私のは今日の仕事の日(Today's my work)
今日、私は病院で仕事を中だっした。(Today, I worked in the hospital.)
でも、楽しみだかった。(It was fun.)
*仕事中だった means "during my work / while I was working" and the other thing/action is needed.
*楽しみだった = I was looking forward to (something)
Good job! Please keep up. I hope this helps you.