Reality Edit: MEMENTO

one fateful day you, Evan Carter, a loser with nothing really going for you... a college student with a part time job at a gas station... receive a package... inside that package is a new phone? it has an app that can rewrite reality? but it wants you to... brush your teeth first? what is this thing? it seems the app awards you points for improving your life by giving you points that allow you to edit the world around you...