To put it politely, I would tell death to kindly "**censor** off". And then I would live life like a normal human being
You know you are going to die anyway, with 100% sureness and you won't do anything with it? :s
I, personally, would start buying things I wouldn't normally, because of their price (mostly food, because I love eating), going into a dept, might steal something and tell everyone my secrets.
-OR-
Volunteer myself for scientific experiments that involves merging animal body parts into humans. (Yop. If it was possible, I would change myself into an anthro at almost any cost)