Auto-change lock screen pass based on time?

I'm looking to make (or find) a script to change my lock screen password based on the time of day, so that I can't mindlessly use my phone - I have to figure out the password (maybe by doing some quick math) first. New to android apps, and I was wondering if such a thing is even possible, assuming I root my phone? Should I give up an attempt to find or make such a script?

I am aware of the possibility of using self-control to just use my phone less frequently. I have decided that such a script might be more effective because I have already tried limiting myself.

 

Also - if something like this is possible, how difficult would it be for someone who is new to making android scripts (but not new to scripting in general)?