Having Trouble with user specific Column

Hello, I have been working on a the journal template to configure it to not show what other users journals are. I have tried to make a user specific field, make row owners etc but to no avail.

Is it at all possible to make the template not show others users entries?

My goal is to create a subscription based business journal from the template including a courses tab.

Can you gives more info about your tables and what now it’s displaied that you don’t want to be there?
Like screenshots