If you're a mindreader, Why can't you predict the lotto?

I'm a mindreader, not a psychic!

Imagine if I could predict the lotto, the odds are incredible!  Even if I could guess numbers you're thinking of.  To be able to predict a set of numbers yet to be drawn in a national lottery would be incredible.
I assure you, I'm not typing this from my home in the Bahamas.