Have you ever been disappointed with yourself? Or, others for that matter?
"How could I get into that mess?"
"Why did it end up like this? Is there a way to change it now?"
"Why am I not able to control myself when I am provoked? I tried my best. I made resolutions. But i can't help."
Generally speaking, we are behaviour oriented. We would like to act better, do better and behave better. We would also like others to be so. But the key to better behaviour lies in our belief. Often there is a need to scratch underneath the surface. We may mentally assent to a lot of information or mimic the views of the media and social protagonists. But true belief is based on deeper evaluation and reflection upon facts.
Facts have a history. If we seek information, we will find it in the objectivity of the past. Considering the issues we need to address, we should challenge those with research of the facts of the issue.

"What if I know the facts and yet feel the opposite?"
Yes feelings do tend to stumble most of us. But the bonafide truth can help us encounter the feelings, especially the illegit ones.

There is an old parable that illustrates this : One day three sisters Fact, Faith and Feeling were walking over a wall. Feeling was very nervous and she slipped. Faith seemed confident to help her and grabbed her hands. But lo, Faith stumbled along with her. But Fact seemed quite stable and walked on. Faith saw her and grabbed her legs. Not too long past Faith was back on the wall following Fact and Feeling followed too.

We may easily trace most of our feelings and behaviours back to our beliefs - often deep rooted, under the surface ones - beyond mental assent, but heart convictions. If some matters trouble us, it may be a warning sign for us to gather the facts, evaluate the history and reflect on what do we really believe. 'Belief forms the foundation under everything that makes life worth living and our handle on what we can't see.' (quoted)