So I ran out of storage how do I get more storage?

Delete something. That is the only way to get more space on your phone.

While you can purchase iCloud storage, you cannot upload all of your data. Besides that, purchasing iCloud storage does not increase the storage of the iPhone. iCloud storage is for backups and syncing, not storage.

You can buy a storage from icloud ,, and upload all your data

setting > your name > icloud > manage storage>> change storage plan