How do I set up and share my profile picture on iPhone contacts?

Hello, i am new iphone user.

Brother showed me feature where i can set up my "profile pic" so when any of my contacts will call me, they will see picture i've set up and viceversa.

This doesn't work for me.

What I've done:

Contacts -> my card ->picture poster -> set up photo there -> share is ON ->contacts only

I've got preview of me calling etc.

Also Settings -> my account apple icloud etc, o've set up pic there as well

also setting -> phone -> share name and pic (which is the same setting as in the contact)

Am i doing something wrong?

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