Chin up, Tone. I think it's human nature to be down on life now and then.
I know that I, every few months, go through a breakdown over why I figure my life is a failure and has no direction. I cry and hate myself for a bit. Then I remind myself of all the things I DO have and that some others don't, like family, friends, love, health, and even a little extra money to buy myself the few little materialistic things I desire........and I realize there are people out there that probably envy my life.
I wish I had the time to volunteer. My choice would be the Third World Eye Care missions, where they go to poor countries and give them glasses and cataract surgeries. I work for an optometrist, so I know what the gift of sight really means to people when they don't have it.