How to clear the memory of iphone 12?

Here are the steps to clear the memory of iphone 12:

Operating tools: iPhone 12, iOS 14.

1, first open the Apple phone settings. As shown in the figure.

2. Then click the AppleID. As shown in the figure.

3. Click iCloud in the AppleID. As shown in the figure.

4. Then click Manage Storage Space. As shown in the figure.

5. Select the cache software to clean. As shown in the figure.

6. Then click Delete Data. As shown in the figure.

7. Finally, click Delete again. As shown in the figure.