>...
>Family comes first, always.
I didn't learn this in the past 12 months, but a recent event has definitely reaffirmed this: stick to your 35-45 hours and leave. I start getting pretty useless as the day drags on. After a certain time, there is a sharp decline in my productivity. If I push through it, I just make mistakes that I have to fix later.
If you're not in a company that values your personal time[0], then start looking for another job. The burn out just isn't worth it. 6-figure salaries with equity and free breakfast/lunch/dinner just isn't worth it when you realize that your 50s will be filled with a distinct lack of motivation to ever leave the house.
[0]: I am with a company that values my personal time, but I voluntarily took on extra work to help another team meet a critical production deadline. I was compensated with quite a bit of extra time off in return. However, the stress and headache of being a duo that saved another team's ass (and possibly their jobs) and their constantly expressed anxiety was barely worth it. I actually snapped on one of those team members during this time period, and I said some things, within earshot of very many people, that definitely was not work place appropriate.