Are you waiting for a cochlear implant? Here’s something you can do while you wait. Read some books in print that you can later access as audiobooks (from the library, Audible, Kobo, etc.).
After your CI activation, listen to the audiobooks, choosing the reader you find easiest to understand. Listen without re-reading the text, at first. Refer to the text if the difficulty is too high. If needed, slow down the playback speed.
After you finish listening, jot down a few notes about what you heard. That helps your brain make the connection between hearing and listening.
If you would like listening activities that are more structured and adaptive, try an auditory training program. In my personal and professional life, I use LACE AI Pro. For more information about LACE AI Pro, see The Case for LACE
Related post: How does auditory training help?