I forgot my apple password, how do I reset it

very simple :

use your pc -> any web browser -> go to "icloud.com" -> click "I forgot my password".

U will need access to your e-mail and your iphone to get restore code.

Anyway there is official instruction If you have forgotten your Apple ID password – Apple Support (UK)

If u talking about security code on your iphone, here is instruction If you forgot your iPhone passcode - Apple Support

Good luck!

Go and find another iOS device. Input the Apple ID and click Forgot password. You have to verify your account with sms code. After that, wait a few hours and you are able to set a new password for this Apple ID.

You were looking at an article about your iPhone passcode, but your question is about your Apple (ID) password. These are different things.

Are you asking about the 4 or 6 digit passcode that you need to enter on your phone to see everything on the phone?

Is there an "Unavailable" or "Security Lock" displayed on your phone?

Want to reset my phone because my WhatsApp just stop working It’s showing that I’m online but if someone send me a message I won’t get it don’t no why that’s why I want to reset my phone but they are showing me two passcode that I should enter screen time passcode I don’t remember it how can I get it please

Not simple if the OP was asking about a passcode, which was referenced above his/her name.