Why is life the way it is?

Why is life the way it is? Why do some of us get the really short end of the stick In every way? Why do things always happen to some of us and some of us have to struggle even with the smallest and most normal things? I see so many people that nothing ever happens to them and they have a great and easy life. Like things seem to fall into their lap and all their dreams come true without much struggle and they just have it all. Meanwhile no matter what I do or how much I try to move forward and build a slightly better life something always happens. I always get the short end of the stick, everything is always a struggle, no matter how right I do things. Even in the smallest things and more normal things in life. Some days I just don’t want to do it anymore. If it wasn’t for my daughter, I would be gone. I just don’t want to fight anymore against life for everything. It just shouldn’t be like this.