If you cannot say a word comfortably, you won t use it. Writing the words you are learning helps as well. When studying vocabulary, try to associate new words or sounds with words you already know. Learn a few words at a time, review them frequently, and then go on to a few more. Studying with a classmate helps.
Language learning is an active process.
If you are learning German, for example, you should start with the English word and try to remember its German equivalent, not the other way around. Activate the language by naming and describing everything around you. Participate as much as possible in class. That s what classroom time is for. There you can make mistakes and get positive feedback and reinforcement.