I know my apple password but my Ipad mini is disabled, how can I open without deleting everything?

Hello,

Unfortunately you must now fully restore your iPad to factory settings. There is no way around it.

This is a good example as to why it is important to always maintain a current backup.

Please refer to the following Apple Support documents.

If you forgot the passcode for your iPhone, iPad, or iPod touch, or your device is disabled - Apple Support

If you can't update or restore your iPhone, iPad, or iPod touch - Apple Suppor

Did you follow the steps in: If you can't update or restore your iPhone, iPad, or iPod touch - Apple Support