This app was mentioned in 7 comments, with an average of 1.29 upvotes
I spent a considerable amount of time looking for such an app last year
Ubhind is the solution
If you set it up properly , U won't be able to access your phone NO MATTER WHAT !
(only whitelisted apps allowed)
Cold turkey ! PM me if you have issues setting it up
Say no more , I have you covered Ubhindubhind is what you need