Q: hi i need a help i cant get access to my id on the phone and i need to change my email address for my appl id

Why can't you access it, what are the errors that you are getting ?

To change an email address on an account log into the account on http://appleid.apple.com : Change your Apple ID - Apple Support

After changing it (preferably you'd long out everywhere before changing it, and back in afterwards) : What to do after you change your Apple ID email address or password - Apple Support