Unlock my phone from this passcode

We can't, and neither can you unless you reset / erase the phone and then restore it from a backup.

If your iPhone is running iOS 15.2 or higher, you can use the instructions linked just below which will not require the use of a Mac or PC:

How to reset your iPhone, iPad, or iPod touch when you forgot your passcode - Apple Support

If you are not sure which operating system is installed on your iPhone, please use the link below, which will require the use of a Mac or PC.

If you forgot your iPhone passcode - Apple Support

You did not read the information in the links that I provided......did you? Everything you need is there.

If you call Apple Support, they will provide the same documentation to you.