As my own feedback to this thread, I love my life, and it has been quite a ride with positive and negative content, suffering and extreme pain, permanent damage to my meat suit, and literally creeping and crawling into old age spitting out teeth.
The secret, in my humble opinion, is expectations. The greed and desire mode is there to sidetrack everyone and blind them into unnecessary rage. Another of the many lock and block systems that will keep you from achieving things, or only supply things that are taken like a pirate from others.
Lower the expectations and accept that we are fragile, life is hard, people are horrible, and that only people with actual skills accomplish things.
Then, when someone is actually a great person, you are so excited and happy about it. When you make it past obstacles, you are happy. When you get run over, you were expecting that to happen. Etc.
It is all about attitude and perspective.
The biggest problem is the ego and that people think they are somehow special or should be getting something aside from existence and survival.
Wow. Go back in time and take a look at life expectancy, access to knowledge, jobs available, opportunities, and slap yourself in the face multiple times.
Ask yourself who the F you think you are and why you think you deserve happiness or anything else in life. We are nothing. When we are gone, we will be lucky if anyone even cares or pays any attention. That is reality.
So, if you can't face reality and take a chill pill, and have to whine and complain about everything out of your control, while not correcting the things you can correct and control, your depression and vile nature are simply spoiled brat syndrome.
Then, there are multiple forms of mental illness, sure. And Seasonal Affective Disorder (SAD) where the cure is to actually get outside and get some exercise, sunshine, and eat right. But we are talking about the basics of controlling and feeding your own meat suit. If you can't get that under control by your own will power, and are too bummed to get off the couch or eat healthy, how do you expect to ever achieve anything that requires so much more focus and will power?
Seriously... not rocket science.