Open Gmail
Search for large emails using `larger:10M`
Search for emails with attachments using `has:attachment`
Delete unwanted emails
Empty the Trash folder
Open Google Drive
Delete large files you no longer need
Empty the Drive trash
Open Google Photos
Delete unwanted photos and videos if they are backed up to your Google account
Empty the Photos trash
Open Google One storage manager
Review and delete large files, emails, and photos
Remove spam and promotions you do not need
Unsubscribe from unnecessary mailing lists
Clear Gmail attachments saved in Drive if no longer needed
Check all Google account storage to free up space
Wait for storage changes to sync across Google services