For some people, that's part of the joy of travel: making yourself understood in a foreign country using a combination of gestures, print or online dictionaries, or applications.
That said, English is widely spoken in many destinations, especially in Western Europe, though less widely in rural locations and parts of Eastern Europe.
Either way, don't let not speaking the language keep you from visiting a country. Try to learn a few basic expressions ('Hello', 'Thank you', 'Goodbye', 'Excuse me') and perhaps an advanced sentence or two ('Where is the bathroom?').
Download a language app. We really like Google Translate, which you can even use to scan a menu or sign and get an instant translation. You can speak to it in English and play a foreign translation to your new friend.
If this is still a big concern, consider a guided tour (the guide will speak English) or a bike and boat tour (where most boat staff will speak English).