Try to eliminate all causes of personal pain.Learn and observe yourself and others in situations, and avoid those in which you become over stressed. Notwithstanding those beyond your control.
All that's left will be good, and become a realist, recognise that the world is 'biased' 80% to go wrong, Murphy's law, and you won't be suprised when it does. It WILL not go as you want it to, 3/4 of the time. That is life, not pessimism.
And as Chris says, a lot of the bullshit comes through via the papers, news, mags., TV, it is all by and large negative, fear inducing, simplistic information lacking gossip, and I think has a REAL subliminal effect, far more insidious and powerful than people realise.
Rome is the mob, Britain is the mob, Sun rules ok, lager, chav, and neanderthals everywhere. The media pander to the mob and the insitutions and upper classes, all that is left is the 'middle' classes who are really workers. Unless you are in, you are out, and subject to a life of desire, and aspiration.
If you are not a footballer, pop singer, or TV actor/ presenter, you are a nobody, always will be, and the message is you are less than adequate.
This is part the reason for the inherent unhappiness, the looking up to those who have, and seeing how we don't have enough cash for what we want. When that is blasted every day in the media, one cannot help become affected. See this, and learn to adapt. Try Buddhism. Life can be a bitch, then there is death to look forward to. Balance of what you know makes you feel good, and what must be done.
We work to have enough to spend on food, drink and sleep, to have the energy so we can work, in order to buy food, to give energy to work....in order to...