私は感謝の気持ちでいっぱいです。
本当に感謝の気持ちでいっぱいです。
I was full of gratitude.
I reaffirmed the importance of a grateful feeling.
I appreciate your attention to detail.
I would like to express my gratitude to everyone.
I cannot express enough my feelings of appreciation.
I sincerely appreciate all of you.