To make it easier, you can try word associations. Try to find a connection between a new word and things or people you know. For example, if your neighbor is a selfish person who does not care about the needs of other people and is always concentrated on his own interests and pleasures, it would be easier to think about him than learn by heart the definition of the word “egocentric”. Just think about this person every time you see the word, and very soon you’ll start actively using it