This world isn't supposed to be right. There are supposed to be things that upset set you because this isn't how things are supposed to be and this isn't where you are supposed to be. You have a home where things are perfect and you will be there soon enough, however first you have to get through this world. Some people say this life is a test and that's why all of the suffering is here. I thinks it's a bit more complicated then that sense this this life was going to be perfect until humans messed it up but I do believe this life is your chance to love God. God isn't going to force people to go be with Him in His home forever so He gives us the opportunity on Earth to chose if we want to follow Him. So if you chose to follow God then soon you will get to go be with Him forever and it will be perfect. It will be all the things you think this life should be full of but better because there it's going to be better than any of us can imagine.