Q: Why when I put my new email address in then the old one still comes up on the I cloud delet this old one

Hi gwennymae,

I understand that you would like to use your new Apple ID but still have your old one signed in. Let's go over what your options are to get this sorted out. 

What you will want to do is sign out of your account in each place that it is signed in at. Take a look at the first article below for more details on when you change your Apple ID and what to do next. 

What to do after you change your Apple ID email address or password
https://support.apple.com/en-us/HT204071​

Be aware that you may be required to supply the password when you sign out of iCloud. If you do, the next article will go over what you can do to get that working for you. 

If iCloud asks you for the password to your previous Apple ID
https://support.apple.com/en-us/HT203828

Let me know if this helps.

Have a good day