If you can’t start a conversation, you’ll never learn a new language. Introverts, I feel your pain. But if you really want to become fluent, you must learn some simple Spanish greetings.
Going paperless and green are big, popular, important ideas. But if you want to learn Spanish, you’re going to have to kill some trees in the process. One of the first purchases you should make: a Spanish-English dictionary. A real, printed on paper, held in your hand, analog dictionary.