Your theory is loaded with contradictions. If "nothing means anything" them the world is neither good or bad. It just is. Therefore, when you claim that " the world is hell," you are just as ingornant and sheepish as those who are ignorantly blissful. You've just veered to the other extreme and in doing so, demonstrated yourself to be just as unenlightened as those you criticize.
People need meaning in order for their lives to be enjoyable, yet this is also counterbalanced by the greatest epic cosmic irony/bad joke/tragedy that we are finite mortal beings capable of contemplating concepts such as infinity, eternity, death, and our place in the universe. With such concepts within our minds minds we therefore also need an eternal infinite existance in order to attain true meaning and thus happiness, but it is denied to us as we get sick and die just like all other lifeforms on this planet - which is why we have created our alternate forms of reality to justify our existance and give it true cosmic eternal meaning. Basically all religions in the world contain mythology relating to an eternal afterlife (there isn't a single one which says death is the absolute end) and the reason why over 90% of people in the world believe in religions is precisely because they fill the otherwise-meaningless eternal void that occurs when mortal beings contemplate death.
And what good does being able to contemplate death or being self-aware or being supposedly intelligent do us anyway? Humanity is undoubtedly the most vile and destructive species to have ever walked this earth. We've sent millions of species into extinction (either directly or via our meddling), we've poisoned the entire global ecosystem from top to bottom (including ourselves - "free dose of cancer-causing toxins with any food or drink purchased now at your local supermarket/restaurant/fast food outlet"), and we're rapidly using up this planet's non-renewable resources as at ever-increasing rate while simultaneously fanning the flames of global warming (like lemmings off a cliff, except the lemmings don't actually know that their actions will lead to their demise - we know, but we just don't care).
And let's not even get started on all the genocides, wars and other atrocities that we as humans have been so addicted to throughout our brutal blood-soaked history. And let's not forget that most people on this planet live in dire poverty and squalor while the rest spend their days gorging themselves on fillet steaks and such. The hypocrisy, the greed, the corruption, the apathy, the suffering: "
All animals are equal, BUT some animals are more equal than others" - George Orwell,
Animal Farm.
Now why don't you go ahead and weave me some fairytales about how wonderful the world/life/mankind is...?