I can’t backup my phone

You will need to purchase more storage space on iCloud. It only comes with 5 GB of space.

Chances are, you are using more than 50 GB now on your phone, so you will likely need a 200 GB plan

iCloud+ plans and pricing - Apple Support

Where are you getting stuck? What error messages appear? How much available storage space do you have on iCloud?

Please remember that we cannot see your phone. Things that are obvious to you are totally unknown to us. Thanks.

Are you trying to back up to iCloud, a Mac, or a PC?

Where in the instructions (in the support article above your name) are you getting stuck?

Good luck! Should be no problem now.