Purchase your own worlds to play on. You can get private worlds by purchasing Donator+ as well. In these worlds you will receive creative, once purchased you must DM a Manager (preferably the founder) to set it up for you. You can also invite your friends into this world and mess around. You will get minimum lag, and support incase something went wrong. And remember you can always ask to reset it. Remember that all of these worlds are linked to the server so you can just do /hub to go back. You are allowed to break all rules except for cheating, and racism etc, bullying, harassment and insulting staff and or the server. 

10 GB World Buy
6 GB World 8.99 CHF Buy
5 GB World 7.99 CHF Buy
15 GB World 17.99 CHF Buy
Custom GB World Buy