i forgot my passcode on iphone 5

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

You may also try the following prodedure in case of a forgotton passcode:

https://www.youtube.com/watch?v=7s8-zLG9ySQ

note that the OP said forgot 'passcode' not 'password'

Use the steps below to reset your password from any trusted iPhone, iPad, iPod touch, or Mac. You can also use a friend or family member's iPhone, iPad, or iPod touch. If that doesn't work, you may not be signed into iCloud on an eligible device or have two-factor authentication enabled for your Apple ID. Follow these steps instead.

On your iPhone, iPad, or iPod touch

1. Go to Settings.
2. Tap [your name] > Password & Security > Change Password.
3. If you are signed into iCloud and have a passcode enabled, you will be prompted to enter the passcode for your device.
4. Follow the onscreen steps to update your password.

Thanks

[Edited by Moderator]