i forget passcode and i don’t have pc

How to reset your passcode without a computer if you have iOS 15.2 or higher.

How to remove your iPhone, iPad, or iPod touch passcode without a computer - Apple Support

Or

Ask a friend or relative if you can use theirs or go to an Apple store and ask to use theirs.

Take your phone to the apple store and they will be happy to reset it for you.

You are required to use a pc to be able to restore your iPhone.