Proper little devil with heart of a saint

I AM whatever I say I AM
Hotheaded then can be calm
I will not be what I dont want to be
My light is now on I can clearly see
I will not be what others want or expect
So unpredictable I will always have an effect
I have done bad things but I AM not bad
But I do know how too live & can be bit mad
Its called having fun & taking bad with the good
Because fun in life is needed and a balanced mood.