I need to know if my sister account got suspended or not be she doesn’t have email address...

We wouldn't have that information here. She would need to be able to sign into her account and check on the console or http://enforcement.xbox.com

She did but it’s not saying nothing it’s just put a black screen

Since I was young when I got my Xbox the account was made using my sisters email, seeing as though an Xbox account and Microsoft account are separate, how could I put the Xbox account under a new Microsoft account without deleting my sisters Microsoft account entirely? I’ve tried calling but have had no luck.

A Microsoft and Xbox account are actually not separate. They are one of the same.

If you change the Microsoft email on the account to an email of your own then your sister will lose her email address forever.

You can add your own email as a secondary alias however youd still use her password to sign in and anytime she changes her password shed have to give you the new one.

Long story short is there isnt any way to completely separate the two without one of you (either your sister or you) having to start completely over. (either you with a brand new xbox profile or her with a brand new Microsoft email)

So I want to change the email address on my Xbox account. Currently, I am using a relative’s email account for my Xbox account due to previous circumstances, but now want to change that email to my own email. How can I do that?

and my sister would like to put hers on there but my brother said she can’t

I got an email saying that they suspended my account and I had to verify my email so I did and it is still suspended i don’t know if you have to wait 24 hours