How to write Dad's birthday card?

This depends first on whether you are a student or a worker. If you are a student, you can send the following.

Dad, you care about me so much and love me. I don't know how to express my feelings. I can only express my sincerity on greeting cards. Dad, I will study hard and make progress every day. Finally, I said to my father: Happy birthday, Dad! I love you

If it is a worker.

Dad, you care about me so much and love me. I don't know how to express my feelings. I can only express my sincerity on greeting cards. Dad, I will work hard and take good care of my family in the future to repay your kindness in raising. Finally, I said to my father: Happy birthday, Dad! I love you?