Secondly, you absolutely have to get your life back. 60-hour-work weeks are inhumane. Your job is taking 20 hours of time with your family away from you every single week. You will never get that time back and you will always regret having lost it.
I will always regret the lost weekends with my previous employer. Management never gave me better evaluations or bigger raises for that time I spent improving their bottom line. I could have spent that time making happy memories like I do now. My experience is that if you start holding firm to 40-hour weeks, management will adjust their expectations to be more realistic.
Remember, your kids are only kids once. You must stand up for your right to spend time with them.