A good way to train your memory is to go through failure.
This can be done through training your memory online.
I have many resources, including the list of words in this photo.
Analysing your memory failure enables you to:
Understand where your memorisation is going wrong
See trends and patterns emerge to set improvement goals
Get past plateaus
Listen to inner thoughts and narratives
Build confidence fixing future problems
Build greater focus and concentration as you try to better yourself each time
These are just some of the ways memory training through failure helps.