Hi, if you do well in the demo version, it doesn't mean you have to do well in real money. That's something to watch out for. It's more about luck I would say.
But I'm glad you like the game and from what you write you probably want to try the it in a normal casino, don't you?
As for your first question, I'm not sure I understand, you ask how many spins should you use in one day? What would that mean???
Automatic translation: