i forgot my ipad passcode, what should i doo

If you can’t remember your Passcode, you'll need to erase your iPad, which deletes your data and settings, including the passcode. If you backed up your iPad, you can restore your data and settings after restoring your iPad.

If you forgot the passcode on your iPad, or your iPad is disabled:

https://support.apple.com/en-us/HT211078