I'm having a huge dilemma here on what is really the best course of action for someone to take. Even though I don't think you can influence how you feel much in this regard. You are who you are after all.
On one end of the spectrum, there are people that are capable of accepting the past. They act throughout life to the best of their abilities. On the other end of the spectrum, there are people that easily fall to regret the past. (Let's for a moment forget about the people that give up on things during their life. Right now I'm only interested in these two extremes.)
The accepting kind seeks betterment through experience but is much more willing to accept a slow pace. Although they are generally happy and optimistic, they also easily fall into stale periods where there isn't much change in their life. While being happy with what you have, the drive to excel is dimmed somewhat and thus prevents the person from unlocking potential great abilities.
The regretting kind continuesly struggles with the bad events from the past, working hard to avoid them in the future with fervent passion. They're generally much more emotional and are likely to have long periods of unhappiness. However because of their drive to excel is very active and strong. And by chance, they could reach great potential in their life, through their constant struggle.
Even though the regretting kind of people may seem to live quite unhappy lives. Their chance to excel from experience is astonishingly great. Which in the grand scheme of things could be considered a very valuable asset in terms of life and the reason thereof. Whereas the accepting kind seems to lack in that chance. And has a much slower rate of excel rate from experience.
This is how I see this spectrum. I'm personally the accepting kind, and I've caught myself at several moments in my life where my accepting and optimistic nature has fallen into a stale lifestyle. I recognize this and do make the effort to change, but valuable time is lost in the process still. And even so, I often lack the resolve to really attempt to excel, for I'm not really unhappy to begin with, so the reason to excel isn't as important to me.
Still I can't stop thinking that in the grand scheme of things, and with in mind that life is about betterment, reaching greater understanding and evolving. Regretting ones past is the most effective way in order to evolve.
This thought doesn't make me particularly happy, which is unusual , as it is very important for me to evolve on quite a few levels. But at the same time, I'm just not the type to regret the past either. Nor being pessimistic. That's just not in me. So, how can I reach the same resolve and drive a person that regrets the past, while maintaining my accepting and optimistic nature?
Since both evolving and excelling, as well as accepting and being optimistic are of equal importance to me. Yet, they both don't seem to go well hand in hand. Which makes me unhappy and makes me feel like I don't want to accept living a stale less quickly evolving life. Whilest at the same time I feel that I'm who I am and should just accept this fact and be happy with where I can get in life being true to myself.
edit: On second thought, maybe this topic fits a bit better in the philosophy forum. Although I'm particularly interesting in trying to understand, and seek possibilities for, the psychological nature of this dilemma.