How do i show more details after picking an item from a list

for context, im making a social media app where you click a post and show the comments and likes. Problem is how do i make each posts have different comments and likes. Right now, this blocks are making all posts have the same comment
Thanks for your time!

It would help if you showed your blocks for storing a comment, your listview values, and the relationship between the comments, the post, and the poster

these are the blocks for posting the post

listview1 is for the post
listview2 is for the comments

listview.AfterPicking will make this visible=true

maybe there are better ways to do this?

also im using separate cloudDB to store the item in listview1 and listview2