Answer:
Personally, it all matters about how outgoing you are as a human. I agree with it because life isn't fair and sometimes you've got to accept the bad things that happen. Many times your life will fall out of order but you have to learn to deal with it.
I believe that "life isn't fair, deal with it" is not a good way of thinking about your life because telling someone to deal with it may sound rude and making it your motto will give you the mindset to give up easily. I feel like going with the flow is a better way of thinking about your life.