When lifes not fair who do you turn to? How do you make it fair?

When your growing up and your not allowed this not allowed that and then the younger children come the ones from his blood and they get away with everything how do you deal with that? They get given everything they got told everything they get to go everywhere it's like a completely different way of life.....

How do you get over that? Do you do the same to your own children or do you do the opposite? It's like those who grow up with money they know how to spend it but if you win the lotto then you weren't born with money and you blow it faster than you got it......

How does that work?

So back to my question how do you treat your kids according to this? Which way would you go? How does your family make you feel like this..... They are meant to be your family...... and this is where the saying comes from "You can choose your friends BUT you can't choose your family"!