When it comes to teaching your brain that names are important, it's not only about learning names. It's also about using names.

(1) You can use names when you greet people in real life: Hi Alice, how are you doing? instead of How are you doing?

(2) You can use names when you tell a story: My friend John told me that it's useful to take Vitamin D in the morning instead of the evening instead of A friend told me that it's useful to take Vitamin D in the morning instead of the evening

(3) In addition to verbally speaking names it's good to have a voice in your head say the name of a person when you meet a person physically even if you don't greet them.

Those three are useful habits. If they come hard to you, you can practice (1) at home with visualisations.