Not helpful right now, but in the future the best solution is to use a LiveCD because you can try it first, install from the CD, and if something goes wrong the CD can repartition the drive and handle re imaging a USB drive with a new installer.And partitions, so you can go back or blow away and reabsorb the unwanted partition.
But no, you really can't do it from a phone. Zorin OS is payware? You're pretty committed then.
If your computer is too new to have reinstallation CDs, then I'd say try the Zorin installer again, see if there is a bare minimum install option - or options to override errors. if it is a LiveCD then it should be enough to let you finangle a tiny partition on your drive to redownload the installer to (might need two partitions; one to download to and one to extract to.)