Hello iPod_touch_pro,
Welcome to Apple Support Communities.
We understand that you forgot your Screen Time passcode. We are happy to help.
These steps may help. Please try the steps here: If you forgot your Screen Time passcode - Apple Support
"How to reset the Screen Time passcode for your child's device
If you’re using Family Sharing to manage a child’s account, passcode reset options won’t be available on their device. Use the following steps on the family organizer's device to reset the Screen Time passcode for your child.
On an iPhone, iPad, or iPod touch
- On the family organizer's device, go to Settings > Screen Time.
- Scroll down and choose a child’s name under Family.
- Tap Change Screen Time Passcode, then tap Change Screen Time Passcode again. You might be asked to authenticate with Face ID, Touch ID, or your device passcode.
- Enter a new Screen Time passcode, then enter it again to confirm."
Let us know if you have further questions.
Take care.