Hope this email finds you well! Last time you said you were learning Chinese but encountered some difficulties. It' s inevitable because English emphasizes the structure，while Chinese focuses on the meaning. With regard to the matter you mentioned in your letter, my suggestions are as follows:
Firstly，I would recommend you to find a native speaker as a language partner，and meet with him on a regular basis. Besides, watching Chinese movies and listening to Chinese songs can make the learning process much more interesting.
Those are the tips on my mind now. I would always be pleased to offer you help. I do hope you will find these proposals practical.