My Nan taught me when you feel a bit sorry for yourself, there is always somebody worse off than you. That and the fact I had a manic depressive mother which taught me how I didn't want to be, so this means I just don't do depression. If I even start to feel a bit low, I just think about all of the positives in my life, put on some mood inspiring music and I'm very quickly in a good positive mood.
I look at depression as one's personal expectation of life over delivery. My Nan also taught me you get out of life what you put into it. If you are not happy with your life, then YOU need to look on how to change it. It can be very simple things, like going for a walk every day or a new hobby, or even just doing something different like cooking a meal you have never had before to sample new flavours.
When I was in my 20's I was very materialistic, now I'm the opposite, my family and friends are my real wealth. All I need to live at the most basic is water, food, clothes, some sort of roof over my head and energy for lighting, heating and cooking. Everything else is a luxury, so in western countries most of our homes and lives are full of luxuries, that we just take for granted. Many things that people in third world countries will never own and yet we choose to ignore them as trifles.
We are all just passing through with an average of 25,000 days and we must all do things everyday to fulfill our necessities in life, beyond that, just do something that is a little indulgent to you, which makes you feel good good. It doesn't have to cost any money and can be anything, like a plan to build your perfect car ,to spending 10 minutes listening to your favourite music. Personally I find history very inspiring, when I walk past an old building I wonder what the life was like for the person that laid those bricks, did he expect his craftsmanship to be their and appreciated by me 500 years later? As he was laying them was he thinking somebody will be looking at this is 500 years time? There is all sorts of wonderment and inspiration is this world, we just have to open our brains to them.