Regret is a negative conscious and emotionalreaction to a person's decision making (which is a choice resulting in action or inaction) have you ever felt regret?
Yes I have definitely felt regret at times in my life. Do you know more about regret?
Regret is related to perceived opportunity, something you may be regretful over is something i may cherish. I like that about regret and emotions in general because it means you can change your outlook on it by changing your persective (sometimes, i dont think it will work for everythng).
It's true a perspective change can really help a situation. Do you know a lot about psychology?
i had a high schools knowledge of psychology but even that has faded away. i loved psychology though especially cognitive psychology! but little fact about regret is in western socities adults have the highest regrets regarding their choice in education, so when making academic decisions choose wisely! 
Wow I had no idea, I can understand though since I regret my own education decisions. Can you tell me more about cognitive psychology?
Cognitive psychology is the study of mental processes like attention, language use, perception, memory, problem solving, creativity, and thinking. It studies the brain very heavily. We learn where the parts of our brain that do what are. It is SO interesting.
How neat, the brain must be so complex. Do you know the regions of the brain very well?
those actions. Agent regret is the idea that a person could be involved in a situation, and regret their involvement even if those actions were innocent, unintentional, or involuntary. For example, if someone decides to die by stepping in front of a moving vehicle, the death is not the fault of the driver, but the driver may still regret that the person died.
Regret is distinct from disappointment. Both are negative emotional experiences relating to a loss outcome, and both have similar neuronal correlates. However, they
Regret
Regret is a negative conscious and emotional reaction to an undesirable situation. 
Regret is related to perceived opportunity. Its intensity varies over time after the decision, in regard to action versus inaction, and in regard to self-control at a particular age. The self-recrimination which comes with regret is thought to spur corrective action and adaptation. 
In Western societies adults have the highest regrets regarding choices of their education. 
Definition.
Regret has been defined by psychologists in the late 1990s as a "