What am I doing with my life? Help please!!!

At somepoint this morning everything cracked and I found myself telephoning my wife and asking;

"What am I doing?"

"I don't know. What are you doing?"

"Well I'm on my way to work... I meant in life."

"Oh... do you..."

"Obviously not you and Sophie... Just everything else!"

I had been reading "One day" and was relating to Em's post university crisis of not achieving all that she had dreamed of and being defeated by the city of London. I started thinking about how I'd felt post degree and how I had hoped and dreamed and now....

Now I'm sat in a darkened room doing the same things day in and out for a company I'm no longer thrilled to be working for.

At 10.02 am I answer the same phone call "Hello Fred......... Thanks Fred....." EVERY LATE SHIFT.

I think about what some of my friends are doing with their lives or even what my sister is doing and it saddens me.

Other than my wife and daughter, of which I am eternally thankful and a hand full of close friends I've a massive hole in my life... I mean what is it all about?

In my spare time I write... not meandering rants/pleas for help like this but prose and essays that I publish on line but ultimatly what does it achieve? Nothing.
I read a lot too. I amass great swathes of fascinating (to me) information about people who are long dead and governments of countries that no longer exist and for what?

I want to do more Lib dem stuff but ultimatly can't imagine what it would achieve and I don't have the time or money to get as involved as I want to either. I just feel life has cornered me and is happily kicking the crap out of me and that Game Over is looming over my head.

I guess I'm reaching the point that I need some direction, I want to do something worth while, something productive or feel productive... Like I am doing something to benefit others, myself or society rather than sat in comfy chairs eatting Haribo waiting for the shift to end and wondering what the hell has happened with life.