Think like this; people are born naked coated in inner bodily fluid as a result of a sinful act of the people who they should respect most.
A simple poke from an easy to get instrument such as a kitchen's knife can have permanent crippling effects on the fragile earthly body, and each bump taken brings excruciating suffering.
Going to school to try and learn something, and just learn that all the dreams and fantasies are impossible to accomplish at best.
Soon discovering about "money" and what needs to be done in order to get it and soon the time(the measure of one's life's duration) becomes focused in getting the said, 'money', only to soon having the strength and health deteriorating and needing to expend all that 'money' in medicaments, doctors and other stuff, just to recover the health that was lost while trying to get 'money'...nice balance huh? wasting health to get money and then having to waste the money to recover health.
And this is a general standard life's data, some people have to deal with worse scenarios like, permanent deseases, poverty, lack of studies, hunger, abuse, prejudice, crime, mutilation, physical disfunctions, neverending pain...and more.
Moral of the story; life sucks and in the end you die. And even if your life doesn't particularly suck from your point of view, it still sucks unbeknownst to the living and you'll still die, be certain of that.
...wow...that was pretty negative! On second thought...don't think like this xD Life is good! Let's eat pizza and cake, play RO and swim! You know... the good stuff.
Also, fun fact; if you fail at an attempt of suicide, the government will press charges against you(at least on most countries in the west side of the planet). So yeah, apparently, your life isn't yours.