1) Stop reading HN. 2) Work your ass off for the next 3 days. You can do it. And for the next 3 days, have as many lunch and dinners with your team as you can

1) Stop reading HN. 2) Work your ass off for the next 3 days. You can do it. And for the next 3 days, have as many lunch and dinners with your team as you can -- meals with your team during a crunch time are a great morale booster. Also, don't pull all-nighters. Even if it's a crisis, you still need sleep. 3) On day 4, have the awkward conversation with your team lead, manager, etc... and quit. 4) Promise yourself you won't get into that kind of a situation ever again. And if you do find yourself in that kind of a situation again, promise yourself that you'll look for and deal with the warning signs sooner than three days before a deadline. (I know it's clichéd, but especially with burnout, prevention is much more effective than any cure.)