努力工作并快乐着的英文

Diligently works and is being joyful

work hard happily
这里应该是动词结构更加合适，而且动词核心应该是work更好，如果enjoy 等感觉不能突出核心意思

Diligently works and is being joyful

Enjoy one's hard work.

enjoy working hard

Taking pleasure in hard work