If my neighbor's party was too loud, I'd probably go over and ask them politely to turn it down a bit. I understand everyone wants to have fun, but it's also important to respect others' need for quiet, especially at night. I'd mention how the noise is making it hard for me to sleep or concentrate on my work, hoping they'd understand.

Honestly, it really depends on how noisy the party is. If it's super loud with a lot of people and it gets too much, I might call the police. It's not really fair for the other neighbors if the party is big. However, if it's just a small group of young people having a good time with some drinks, I would probably just wear my headphones and let them be. We don't have many chances to party in our lives, so I wouldn't want to ruin their fun.

If a neighbor's party was disturbing me, I might try to relax and not let it bother me. Maybe doing some yoga or listening to my own music. If that doesn't work, I could always dive into a hobby that I enjoy, like painting or reading, to distract myself from the noise.