"our society is set up for certain kind of people to succeed - but don't be mad when it doesn't work out great for you." Here's the mistake in your thinking as

"our society is set up for certain kind of people to succeed - but don't be mad when it doesn't work out great for you." Here's the mistake in your thinking as a society can be set up to be fair or unfair. However, a society can be changed and does change. It's fine to be mad at unfairness, it's fine to fight unfairness via societal changes.