Sierra For vocab you should try pick up new words in everyday life, like if you hear an unfamiliar word search it up or write it down for later
Words are better picked up through repetition so try to revise them often..
But knowing more words obviously won't be as helpful as it seems since there's a low chance they'll actually be on the test.. though practicing guessing (educational guess) words through context and word roots does help a lot!!
During a test if you come across a vocab question, identifying common word roots like anthro, un, exo, etc can narrow it down and if it's placed in a sentence of course use context the best way you can.. always an educated guess is better than skipping it which is obvious but important to remember lol