How do I make myself admin?

Actually, I worked out what the problem is. Thanks

Zoom does not enumerate owners as there has to be an owner and there can only be one owners.

Roles

Owners - 1

Admins - 0 

members - 1

Is how you can imagine it if you have no admins besides the owner role.  The Owner role is the highest admin by default. 
You can give an admin role to the owner in account management. This might be useful if a team of admins were be grouped.

How to add members to roles

1. Sign in to the Zoom web portal as the account owner or user with the privilege to edit account settings.
2. In the navigation menu, click User Management then Users.
3. Select the check box to the left of the users that you want to assign a role.
4. Click the Change Role button.
   This displays the Change Role dialog.
5. Choose the name of the role to which you want to add users.
6. Click the Save button to return

Regards

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