How do I free up storage on iPhone 12 for WhatsApp and iCloud backup?

"How do I free up storage on iPhone 12 for WhatsApp and iCloud backup?: I was talked into an iPhone 12 when I took out a contract with vodafone and the phone has been such hard work ever since. I don’t even have enough storage to use whatsapp, if I try to use iCloud for backup I’m not gaining anything because the phone won’t backup and if I delete my photos they will also be deleted from iCloud so there’s no point in trying that again, any suggestions?"

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Caches may have intensely uploaded. So, clear them.

Troubleshooting iPhone Storage:

Internal storage cannot be upgraded. It is what it is. So, the maximum internal storage capacity never increases, even if you upgraded your iCloud plan. Learn More here: What's the Difference Between Device Storage and iCloud Storage? Apple Support

So, what to do...

Clear Space Using my User Tips:

• How to Clear Space from your Mobile Device, and What to Clear: - User Tip
• How to Clear "System Data" in your iPhone's Storage: - User Tip

""How do I free up storage on iPhone 12 for WhatsApp and iCloud backup?: I was talked into an iPhone 12 when I took out a contract with vodafone and the phone has been such hard work ever since. I don’t even have enough storage to use whatsapp, if I try to use iCloud for backup I’m not gaining anything because the phone won’t backup and if I delete my photos they will also be deleted from iCloud so there’s no point in trying that again, any suggestions?"

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Cleaning iCloud Contents:

A. Download All of iCloud Drive:

You can download all of iCloud, and then search through the iCloud download using a the Search Bar on the top-right corner of a new Finder window. Once confirmed, you can erase it all, and start over, searching through this backup, as needed. Use my User Tip: Getting a Quick and Direct "iCloud Drive-to-External Hard Drive" Download - User Tip

B. Download the Rest of iCloud:

Refer to this Apple Support Link: Archive or Make Copies of the Information you Store in iCloud - Apple Support