Dee,

You forgot to mention her your switch would be connected to?


The deliverables of your project are quite straight-forward. Your problem should not be the microcontroller but your (lack of ) knowledge of C.
If you do not know C at all, then you will have to read some manuals until you can produce your own "hello world". If that works, then you have a go at writing down what your microcontroller should do and try to translate that to some C-program.

Anyway, cancel your christmas party, and spend the time reading manuals. :-)

regards
Patrick