Welcome to TUG
@gwilson
You didn't give us any info about your situation, but essentially, no. All you can do is stop paying, and deal with the consequences.
If you have the good health, and money to travel, WorldMark is a very flexible timeshare system. If you can afford it, begin using it. If you can't, stop paying now. Do not sign up with any outfit that calls you, claiming they can get you out of the contract. You will just throw away more money.
If you keep it, NEVER attend an "owner update". Just say "no, thank you", then walk away. Ignore the person who yells after you, or follows you.