You can leave an organization whenever you want, however, the owner of all the organization content is the organization and when you leave, you'll leave all the content you've created behind. Organization content cannot be taken out of it.
- Click on the account icon on your homepage and select organizations or click on your name at the top of the page and select organizations.
- Select your organization and click on leave organization.
- A dialogue box will pop up asking you if you're sure, if you are, click leave.
- You'll be removed automatically.