Remove Access to 4 number code for a specified period of time

Hi everyone,

I am looking for a way to remove access to a specific four number code for a specified period of time. I'm looking for novel solutions to my proclivity to waste time at work (like right now!). I've made a macro that creates the code, emails it to my friend, and then deletes all traces of the number however I'm thinking that contacting my friend each time I want to turn off screen time or downtime or whatever might become excessive. I've thought of doing a schedule send on gmail or something similar but so far no luck. I figured the amazing people in the forum might have something for me...

Thank you!

J

Alternatively, requiring some sort of difficult or tedious challenge to get the code wouldn't be bad either...