(Do not apologise or feel guilty for trying to better yourself or your life through new experiences.)
You're young. Travel for more than a month. Go somewhere you've never been and you don't speak the language. Stay in hostels. You'll meet friendly people everywhere and see things you can't imagine now and, perhaps, gain a sense of self-belief and confidence. Perhaps through adversity - it might be hard sometimes! Fantastically rewarding like nothing else, though.