Dude, just chill out and relax some. Sounds like you've had a rough night and I know that it is just getting to your head, but you're over reacting.
Look at some positives. You sound like your love your family and are extremely proud of them, most people don't even have that. Life for your family, you can find your happiness through them. But don't be afraid to have a personal day. Go camping one weekend, (mega cheap) start running, start playing some sports with the family, etc. Not always able to take a nice vacation, but the little ones can make you survive.
You have a job. You might hate it. What's unemployment up too? 9.1% (just googled it). Yeah it sucks, most do. It'll get better, maybe not tomorrow, or maybe not till you get a new job, but you'll be fine until then.
Last off, go bang your wife, and go to sleep. It'll make you feel better.