If you're going to play P&W, expect some losses. You're not going to win everything, and you're going to lose your infra and military sometimes. Just remember that you can always rebuild and it won't take too long to fix it. Believe me, I've played for about a year and four months now and, my nation's been nuked 21 times, lost over 100,000 infrastructure, been scammed in many peace negotiations, raided many, many times and plenty more. But you can always rebuild, you can always grow your nation back up, and honestly, losing wars once in a while is just a part of playing this game.