It's better to focus on how to win and be positive for it helps to see better choices while you are already in a situation.
I do not agree with this. I am gambling and I have friends that are gambling. We focus on winning and we gamble often but we lose more. The more most gamblers focus on winning, the the house eill earn money from them. We have advised ourselves nit to use money that can affect our feelings to gamble which is the right advice. That advice alone is because we also focus on the fact that we are losing.