How do you say this in Korean?: "When I am going to school, I feel happy."
My best guess on how to write this Korean is:
"언재 재가 학교에 가고 있는 동안, 행복을 해요."

What is a better way to express this with Korean grammar?

Question

How do you say this in Korean?: "When I am going to school, I feel happy."
My best guess on how to write this Korean is: 
"언재 재가 학교에 가고 있는 동안, 행복을 해요."

What is a better way to express this with Korean grammar?

Answer

학교에 갈 때, 난 행복해요.:)

Answer

How are you doing am Lisa. and interest me to write you. you can write me at my email Lisawilliam02@hotmail.com  so i can send you my photos Also tell you more
about myself.

Answer

Hence why I asked for a better way to say it. I would prefer an answer, not indirect advice on methodology.

Answer

Focus on meaning, not translation. Your sentence looks too literal/direct/word-for-word.