A system is any combination of elements that work together in harmony to achieve a single result. There can be simple or complex systems, but the common thread is that the entire system is dependent on all parts working together and playing their role.

Inside of the "system of your life" you can often become the weak link. 

What is the constant weak link inside of all these examples? - You.

"You can be your own worst enemy, but you are also your greatest asset." - Dan Hafner

Where in your life are you constantly blaming something external for your lack of results, but ultimately it comes down to you being the weak link?