Question: how to change your my eyes only password if you forgot it?
Answer: Swipe left in Memories to the 'My Eyes Only' tab. Tap 'Options' at the bottom. Tap 'Forgot Passcode' Enter your Snapchat account password and tap 'Next' ...  Read the information, and if you agree, tap the circle icon and tap 'Continue' Create a new passcode and confirm it.