A famous Super Smash Bros player, when asked for advice, would always respond with "Don't get hit". Seems this principle of not blundering has wide-reaching applications!
I don't even bother attacking. It annoys everyone.
And I agree, I think the idea of avoiding losing is better than “trying to win” in many cases. Like with health and fitness, it would be very hard to identify what the right action to “win” would be (what does win even mean?). But it is much easier to do the things that keep you from losing. Don’t eat poorly, don’t be inactive all the time, and so on. The avoidance approach won’t have you reaching the Olympic level, but you’ll be doing a lot better than most.