Suffering as Tony Robbins puts it is ultimately a choice.
It may not seem like it while you’re suffering, but everything in this life comes down to choice.
Choice comes from responsibility which is ultimately the the ability to respond. If you are not responsible for thoughts and feelings then you will continue to suffer. It is only when one realizes that they do indeed have the ability to respond to their thoughts and emotions, or even decide to stop creating those thoughts and emotions can suffering end.