Managing MEAN stack website (newbee)

I'm relatively new to web development and i've started looking into developing with the MEAN mean stack. I have a really simple question.

SO, say im creating a simple webpage showing a list of fruits from a mongo db. the end user will only see this list of fruits. however, i want to be able to edit this list. so do i have to create another page (like an admin page) to do that? Also, how do i create it so that only i have access to the admin page.

Im guessing i have to make another page that pulls fromt he same db and edits/ adds or whatever. my concern is how am i going to keep this admin page private. note the website doesnt have any 'user logins'

thank you!