There's only 2 things you can do.

1) Server transfer (which you have stated you don't want to spend the money for)

Or

2) Start a new character in a different server.

Obviously if you're choosing the "I don't want to pay extra to transfer servers", then its either a new character for you and your friends or be stuck in your server. There's nothing the game can do to help you. The tools are there, now its a matter of whether you will use them or not.