It will help a lot to be patient. You won't be fluent in Spanish before the end of the week. Even if you have a perfect memory and can remember all of your vocabulary and conjugations, you might still have some problems stringing together a sentence correctly. Your progress will suffer if you try to become fluent too quickly and put pressure on yourself. Instead let yourself learn slowly. You'll feel more comfortable with the language. It's also good to learn slowly is because people will have more patience with you if they know you're trying to learn their language. If you try to pass yourself off as completely fluent too soon you could offend someone!
Place some kind of note or label on various items, with the Spanish word for it. You can do this both at home and work, if it's practical. Using this method, you'll start learning vocabulary automatically. By gaining a thorough knowledge of the right words, you won't later make a mistake that could prove to be an embarrassment. You don't want to be remembered for making a gaffe or even making someone angry by using the wrong word by mistake. If you label your home and office you'll be able to practice learning your new language in a comfortable environment which, depending on your learning style, could speed up your learning process.
Try reviewing your vocabulary by using flashcards. Using flashcards regularly will definitely improve your vocabulary in the new language. Language is largely about memorizing, and these cards help you do just that! Don't just use them for simple objects, but also for grammar, remembering the different tenses and other aspects of learning the language. Flashcards are a tool that you can take around with you and use whenever you find an extra moment. Use them with someone else and let them quiz you sometimes. All you have to do is use one side for Spanish and the other for your first language; it's that easy!
Learning a language does not have to be difficult. In fact, many people choose learning Spanish as their first foray into other languages because it is supposed to be pretty easy to learn. There are lots of ways to go about learning a new language. Not everyone has to take the same approach; ask yourself what seems like the best choice. Once you find the right method for you, you will know it. Remember that whatever method you use, you have to give yourself time to make progress.