Forgot screen time passcode, but I can't reset the device...

So, I needed to change the screen time settings on my iPad. However, I've forgotten the passcodes, and I deeply suspect I just entered a random number (stupid, I know). I was really set on this, so I went to back it up on the iCloud and reset it. But, here's the kicker—it won't let me reset it without the screen time passcode! I don't have a computer I can use to help, so I'm at a dead end there. What can I do?