First and foremost, I didn’t say that you should do overtime, every time. I strongly discourage being an workaholic. Yes, you can work a bit harder in your first years of career (let’s say the first three) but that’s all.
Regarding overtime, try staying 40 hrs/week at office. There are days when you could leave earlier and there are days when you need to stay a bit late as explained here.
Being healthy (both mentally and physically) is important in order to be able to work. However, you need money in order to be healthy.
So your career is important as much as as your personal life.
Your career brings you money to enjoy your life. It takes away 60 hrs every week (considering commutation to work), but it makes the rest of the time more interesting.
You should not be unemployed, from my point of view. If your job has financial issues and you are about to be disposed, you ought be knowing that. You ought be having at least 5 names of the companies were your job application will go — you should always be looking for a job regardless the context.
Your friends and even family may disappear from your life from various reasons, but your need for money will not.
So what I’ve said so far, is that you need being committed to your career. It pays your bills, don’t you ever forget that!
You don’t like a job? A miserable job is better than no job at all. And maybe it’s you … are you a well prepared candidate? If yes, then you already have a plan and your new dream job offer should be on it’s way. You know where and how to apply. If not, then get back to work!