yeah, you've bought the wrong Apple Pencil I am afraid
See the compatibility of the USB C pencil here:
- iPad Pro 13-inch (M4)
- iPad Pro 12.9-inch (6th generation)
- iPad Pro 12.9-inch (5th generation)
- iPad Pro 12.9-inch (4th generation)
- iPad Pro 12.9-inch (3rd generation)
- iPad Pro 11-inch (M4)
- iPad Pro 11-inch (4th generation)
- iPad Pro 11-inch (3rd generation)
- iPad Pro 11-inch (2nd generation)
- iPad Pro 11-inch (1st generation)
- iPad Air 13-inch (M2)
- iPad Air 11-inch (M2)
- iPad Air (5th generation)
- iPad Air (4th generation)
- iPad (10th generation)
- iPad mini (6th generation)
For the 8th generation iPad you'll need the Apple Pencil first generation
See the compatibility list for the pencil first generation:
- iPad Pro 12.9-inch (2nd generation)
- iPad Pro 12.9-inch (1st generation)
- iPad Pro 10.5-inch
- iPad Pro 9.7-inch
- iPad Air (3rd generation)
- iPad (10th generation)
- iPad (9th generation)
- iPad (8th generation)
- iPad (7th generation)
- iPad (6th generation)
- iPad mini (5th generation)