Why isn't my password working anymore?

[AC Question]

i need your help my password isn't working anymore

I have an encrypted note 3 I absolutely know my password it use it maybe 50 times a day now suddenly when i turn on my phone i insert my password , it writes samsung and a tone goes off, implying password has been accepted and phone is turning on , it then asks me again my password

im in an endless loop

what should i do ?

 

[B. Diddy]

Welcome to Android Central! Are you able to wipe the cache partition? https://support.t-mobile.com/docs/DOC-11017