How do I reset my iPhone 8 Plus password?

See the first line in this tip→If you forgot your iPhone passcode or your iPhone is disabled - Apple Support

Laralalo wrote:

I dont have a computer on hand however i have forgotten my password on my iphone 8 plus what can i do now

I am also away from the country i leave in

[Re-Titled by Moderator]

You'll note from the link Lawrence Finch provided, you'll need to use a computer. If you don't have one, you'll need to borrow one or visit an Apple Store where you are.