Set your goal. Ask yourself why are you learning? It is not enough just to say, “I want to learn the language.” Any language is a big and complicated subject. It is too big and scary even to look at. Please determine what you want: Do you want read books by Leo Tolstoy in their original language, or understand what your business partners are talking about? Or do you have a Russian friend and you want to please him or her by saying a couple of words in Russian? Think about it before you go, and write it down.
Think about your budget and how much money you are ready to spend on studies. It is a very important point and will determine your future actions.