Hello there little whore. To be honest - i glad that your parents forbid you to go for holidays with your whore girlfriends. The only new experience you can find is to how suck 20 cm cock or how try a double penetration. i also hope that someday you will be raped and killed by wild homeless
Try to prove them that you can be an independent person that is able to deal succesfully with lots of hard situations that could happen abroad. Start being more self-disciplined and self-supporting. Learn how to cook, to wash clothes, to be free using maps and any city transport to get to the desired place. In short, try make them see you can easily take care of yourself. And of course don't forget to practice foreign language a lot. Without at least a bit of understanding local people's speech or city signs you really might get into trouble.
A short distance trip made on your own may also get your parents give you a green light to travel abroad without them.
If they see you can travel short distances alone (for example to the nearest city or something) it will increase their faith in your ability to get well abroad.