Hello ElleLolo.
Thank you for using Apple Support Communities. It sounds like you're experiencing issues with your Apple Pencil no longer pairing to your iPad. We can understand how this would be an issue. Allow us to investigate this issue and assist in any way we can.
It does sound like you've done a great job in troubleshooting this specific issue. We would still like to share a helpful resource with you below:
Connect Apple Pencil with your iPad - Apple Support
Please follow all the steps listed under "If your Apple Pencil won't pair with your iPad". If you continue to experience issues, you might want to consider reaching out to Apple Support for help. Just in case, you can use the link below to reach them:
Get Support - Apple
We hope this information is useful. Cheers.