My notepad password is not reset

Resetting Notes password does not reset the password for current Notes that are locked, only for future Notes you wish to look. The only way to get into a Note that you locked and forgot the password is to remember that password. If you cannot remember it, you cannot get into it. The good news is as long as you do not delete the Note, you have unlimited attempts to unlock it. See this, How to lock notes on your iPhone, iPad, and iPod touch - Apple Support