Hey there, Amberlynn434! You would need to perform a hard reset on the phone. This will also require that you use the same Gmail account that you had when you set up the password after the hard reset in order to regain access to your phone. Keep in mind that everything on the phone will be deleted. You can find instructions on how to perform the hard reset for a ZTE Max XL here.
It's also worthwhile , if you do have google device manager enabled, to try resetting the pin remotely.
This is an external link with instructions.
May the 4th be with you. (sorry)
Here is a way to unlock forgotten password on LG Android phones, maybe helpful with you. Watch this video about dr.fone for Android, the Unlock Android. https://youtu.be/BOZOMqgSKhc