-listen to disney songs in your target language.
-watch tv shows with subs, dubs or both in your target language.
-find some pop songs in your target language and listen to them while you work on something else.
-when memorizing vocab, try writing the vocab in sentences, rather than just learning the vocab itself. try to make the example sentence as funny/ridiculous as possible, so you remember it later.
-try texting a friend who speaks/is learning your target language. you might surprise each other with new words, and you’re more likely to remember them if they have context, eg. talking with a friend.