how do i unlock my iphome

can you clarify?

The simplest answer to your question is to type in your passcode.. but I doubt you'd be here if it were that simple.

So.. is your phone disabled?

If you forgot the passcode on your iPhone, or your iPhone is disabled - Apple Support

are you trying to remove activation lock?

Turn off Activation Lock - Apple Support

trying to unlock it from your carrier?

How to unlock your iPhone for use with a different carrier - Apple Support

If your trying to unlock it from other carrier please refer to this link

https://support.apple.com/en-ca/HT201328

and if it’s locked because of passcode issue or iCloud please refer to this one

https://support.apple.com/en-ca/HT204306

good luck!