if ur afraid of memory decrease just try to improve memory on every benchmark, like game of simon highscore or humanbenchmark the memory tests record

[_MVP_]

or dual n back and all other memory games, without cheating though, ur memory has to be good without any mnemonics

being good at all memory benchmarks will ensure ur confident in ur memory

u dont need to actively try remember things irl, for memory increase there are the benchmarks, and u will automatically exercise ur memory

ofc separately u can read and train some mnemonics