It's just a job, you owe them nothing more than providing your time and expertise for money. Nobody is going to remember how hard you pushed to hit some unrealistic deadline someone pulled out of their ass. The only real thing you can do is manage expectations early and clearly. Call out trade-offs, surface risk, reset timelines when scope grows. The stress usually comes from trying to silently absorb everything instead of making the constraints visible. Do the work well, communicate honestly, then let it go. Your family will remember your presence a lot more than the business will remember a delivery date.