I don’t want the pictures I take on my iPhone to go to my iPad also. I tried setting up a separate iCloud account but if I delete a pic on iPad it is gone off my phone also

Do you want your iPhone photo’s to be available in iCloud - where they can be accessed by other devices - or stored just on your iPhone?

If you want your iPhone photos to be stored on the iPhone and iCloud - but not on your iPad:

• iPhone: Settings > [Your Name / AppleID] > iCloud > Photos > iCloud Photos - set to ON
• iPad: Settings > [Your Name / AppleID] > iCloud > Photos > iCloud Photos - set to OFF

If you want your iPhone photos to be stored on just iPhone and not iCloud:

• iPhone: Settings > [Your Name / AppleID] > iCloud > Photos > iCloud Photos - set to OFF
• iPad: Settings > [Your Name / AppleID] > iCloud > Photos > iCloud Photos - set to OFF

In both cases, as Photos in iCloud is disabled for the iPad, your iPad photos will only be available on the iPad itself.

Turn off iCloud Photos on your iPad. (settings > photos)