Life, what a crazy ride it is and where it takes us

I surely can't be only one who thinks this but why does life give us so many problems why is there so much hurt in life lessons to the point you feel your going to break. Like every single thing wrong is your fault that you have no escape you try to make things better and things get worse. Why does life mess with us and bring depression, and lies? You give your heart to someone for 14 years and they try to stab you. Put things in your food with out you knowing, make you question your life your emotions I mean really mess with you. Why does life have to be so messed up not only that but it passes to your kids and messed with their life's. Why is it a never ending hurt and will the pain ever stop?