Surprise surprise, that unrealistic deadline you set even when the engineering team told you that it wasn't going to work has backfired! Maybe you wouldn't be so stressed if you learnt to listen? It's a pretty basic skill, or at least I thought so.
Oh and when you say "we have two options, stay late or work weekends" you have a critical bug in your conditional. Your missing option 3, go the fuck home. Time to enjoy my weekend with friends and family.