The frustration felt by many when travelling abroad and not finding people who speak your language, is one of the reasons to add "learning languages" to our bucket list. However, the learning process is not a matter of one-year course or a few weeks in class: it involves full-time commitment and self-study. These are key to keep the language coming back to you when needed.
The following video is an exception of those who say not to speak English, in an attempt to get away with it.