We're Running out of Thyme!

You were brought into the science world as a child, working with your father day and night to accomplish the dream of a perfect world, and it's taken years to accomplish but you did it. The first test run and it seemed too good to be true, but you'd be damned if it was ruined.You're now trying to live normally, setting everything behind you to enjoy the world without death around every corner, but what happens if things go haywire or you mess up majorly? Will you try again? You hold much power with the machine that's collecting dust in your bunker, and you dread having to use it.