How to use Wix Blog as individual space for users

Hi , I am new to Web development.

I am making a web service for studying and I am trying to make a page for personal study which individuals can upload their posts that other’s cannot see.

Each users can add their own categories and upload their posts respectively and others cannot see or access other posts.

I would say it is similar to Notion that I have my own working space that I can add new categories and make notes only for myself.

I found out wix blog does similar things but its for everyone to see. Is there any way I can use wix blog as individual users space (users are all logged in)?

Or is their any easier way to make one?

It would be greatful if any of you can help!