Don't you every start wondering, what if I could take back my mistakes made in life? The smallest detail could mean the biggest thing if you allow it to unfold
well regrets are percieved to missed opportunities, so if it relates to that then yes
Without regret then we could never learn from our mistakes. For some it is much more harsh than other.
intensity varied over time for decisions so you maybe you will come around  
Hopefully I do and then I will be able to realize what regret rally entitles
in the west ironically the highest regret is where people go for their education
Yes that it extremely unfortunate,  me being witness to many close individuals who have experienced that.
but remember Regret is distinct from disappointment and both have similar nuerolocigal effects
You are very right but disappointment does not only let you down but also entitles other factors.
negative emotion predicated on an upward, self-focused, counterfactual inference". Another definition is "an aversive emotional state elicited by a discrepancy in the outcome values of chosen vs. unchosen actions".
Regret differs from remorse in that people can regret things beyond their control, but remorse indicates a sense of responsibility for the situation. For example, a person can feel regret that people die during natural disasters, but cannot feel remorse for that situation. However, a person who intentionally harms someone should feel remorse for
story] at all, actually, I thought it was rumor, [...] but hey, I think we're all entitled to follow our dreams. And if that's part of her dream, then go for it. You know? I wouldn't resent anybody for trying something new and you never know what could happen. [Kim] could discover that she has a new passion." 
In an August 2014 appearance on Bravo's "", Kardashian stated that the biggest regret in her life was recording