One possible version:
Li Hua,
It’s time to say goodbye. It’s time to recall those beautiful days we spend together. You are the very person who gives me a hand when necessary. You are the most considerate person who knows exactly what I need.
do you still remember that night two years ago? When I suddenly fell ill, it was you who carried me on your back to a nearby hospital. You took good care of me while I was having an injection. Later, you managed to help me with my lessons. Without your help, I would have failed in the examination.
I still have hundreds of stories to share with you. I still have thousands of blessings for you. May all your dreams come true! May our friendship last till the end of the universe.!
Yours,
Wang Ping
略