Lol, seems like you finally realized how harsh reality really is, I think that was his main point DS.
There are somethings that can help ease your mind though and cope. There are other things you can do to actually contribute, big or small, it doesn't matter.
Somethings can help you cope with reality is to define yourself... There are many things that can help you define yourself too! Here are some of my suggestions, I don't do everything here but they're said to help, right?
Physical Well-being:
Excercise is one of the most useful ways to stay healthy and get your mind off on how much the world suffers. When you sit there and take in everything too much it really just has you feeling depressed man, I feel ya. Too much of anything isn't good for you.
Excersing can really clear your mind though and with a good nutrious eating habits it really helps ya! Aside from the healthy benefits, it can actually help compose YOU and your identity... Keeps you more resolved too.
Education:
This doesn't just mean specifics like what majors to take or anything. I mean, basically keeping your mind sharp. Being educated and reading up/forming opinions on both your profession and life itself really helps you become more aware of things. I heard some electricians thoughts on some hot issues, and they were fucking great. Keeping your mind sharp by engaging in the understanding of things helps us become better at actually reading and understanding situations more.
You can also engage yourself personally by reading up on some of the issues of the world and trying to form your own opinion - with morals and perspective accounted for (people just don't do this much). What I'm basically saying is don't be a big ignorant biological dope. A lot of us live in a democratic society and voting without little to no thought involved (I saw his picture on me lawn). Although all man made laws and social systems have their flaws, it's what we got to work with.
Religion:
Yeah, go ahead and flame me for this! But a greater purpose in life is really necessary. If you look at life as a perpetual chain of events and human life as just a biological thing (eat, sleep, shit, die, etc)... Then you will really feel helpless as well man, even if your contributing.
I'm not saying to go out there and take in any religion with out thought. Do some good research and you might be suprised at your findings. Choose what best suits you and feel is the most accurate/relates to the most. Some religion core is really great aside from all the shit people slap on them...
If you don't want to go as far as becoming religious. You can at least start off by accepting that there is a greater purpose then just our lives on earth (plus it wouldn't make sense that all these criminals that destroy our world everyday will be getting off scott free).
Contributions:
Small or big contributions to the greater good is always great! Remember, it's these contributions that help us change the world for the better. I guess you can start off by incorporating some good morales into yourself. Also, a good philosphy is to understand what's right and what's wrong, WHILE understanding the people perspective.
Life isn't black or white, it has an enormous amount of shades! I'm sure that if you can compose yourself well... You'll generally make better decisions in life overall. You'll also be more helpful to your society as well.
As for contributions, you can make small or big contributions. You know, homelessness is an issue that's litterly visual to our daily life, but it's sad that a lot of people still don't give a flying fuck. Reach out to the people around you and try and help them in anyways you can. The great thing about our society is that there is litterature on these things too! It would be your job to try and sift threw the bullshit stuff though (keep your mind sharp).
Human nature is really ironic... We say "Oh, I would do X if I saw X". Yet, when that exact scenario happens to people, they do like the complete opposite to what they initially said.
As for bigger contributions, if your serious about it you can go as far as changing your very profession! I think this is a bit drastic, just a small suggestion.
Again, with all the good things you do in your life... Don't forget about yourself. I actually just watched Saw 4 and they were ranting about that throughout the movie, how Ironic!
Do what your capable of doing!
I have some suggestions if your really want me to go into it. I was being quite vague in this topic, sorry.