I am 62 years old but have been depressed on and off since I was about 14.
I dont mean depressed in a clinical way, though I have had one nervous breakdown, and come very near to it at other times in my life, but more a sense of "gloom" hanging over my head all the time.
My problems are not about money (I worked for 30 years for a large computer company and got paid well and I am now retired with a good pension).
They are not about my married life. I am in my second marriage and after 27 years we are still very happy together and have a good active sex life.
I have 4 children (2 from each marriage), and they are all fit and healthy and in good jobs etc.
So you might say "why so sad".
Well I cant explain it, I just find life VERY VERY hard, worry about anything and everything, seeing the negative in many things, and tend always to be a "glass half empty" type of person.
I sometimes see people in a pub laughing their head of and being so happy, but I never ever feel like that.
I remember one guy I worked with who was generally happy and laughed a lot through the day, he probably laughed more in one day that I do in a year.
I can never do anything, or go anywhere (like a holiday), without thinking it is all going to go wrong, and this puts a great damper on anything I do. I am usually just so glad when the holiday is over and I am back home.
I have contemplated suicide many many times over the last 30 years. My divorce 30 years ago was very traumatic and led to my first nervous breakdown and has led to many suicide thoughts since.
I remember going on holiday to Jersey with my wife about 5 years ago for a lovely holiday, and when we were walking along the cliffs on the North shore my main thoughts were what a great place to commit suicide, nobody would find your body for ages. I never told her this of course (may have spoilt the holiday !).
I think there are just some people who have an inability to be happy and just find life very hard. Someone like Tchaikovsky spent his whole life "sad" and in the end probably committed suicide, same with Van Gogh, who did commit suicide.
I have read numerous books about "overcoming depression", attended a 12 week therapy course, and taken various drugs given to me by the doctor, but it has never done any good and I think I am destined to be like this for the rest of my life.