I want to use just 5 digit password instead of Caps lock number small character and more. I want to just use 5 lengh it can be anything like 12345 or abcde
You can disable password validation from the admin panel for that go to
Stores -> Configuration -> Customers -> Customer Configuration
Password Options section there is a field
Number of Required Character Classes
1 in that field and in
Minimum Password Length set
5 and save the configuration.