I lost my Iphone and bought new one and I am trying to download all my information from I Icloud,

If you have been making automatic or regular backups to iCloud, then see:

Use iCloud to transfer data from your previous iOS or iPadOS device to your new iPhone, iPad, or iPod touch - Apple Support

lost i phone when restoring data on my new phone it told me to enter my wife's phone number and when I did it loaded all her data on my phone and named my phone her name how can I get my data back from the cloud