@Roberta,
I play chess against my computer quite a bit. I lose a lot. (Sometimes I'm happy just to get a stalemate!)
But that's different from a card game or a run-of-the-mill board game e..g. Monopoly. I agree that quick action and a minimum of thought are important in such games. Follow your first impulse; just do it and don't kvetch about it if, in retrospect, it turns out to be a bad move. You play the hand as it lays with no Monday morning quarterbacking allowed.
Interestingly, that's the exact opposite of my philosophy of life. I'm a firm believer that if there's a real-life situation where I just don't know what to do, the best move is no move -- don't do anything until the situation changes and you get an inkling of what should be done. I hate it when people tell me, "Well, you've got to do something about this right now." No, I don't. Not if I don't know what the best move would be.
But that's life. We're talking about games here.