"I make the decision once a reasonable goal is already achieved and i am getting tired/bored of this activity."
Obsession for me is spiced by boredom. If I am not distracted, that just means more room to think about all the things I could have done better, could improve, or could do better in the future.
"Don't regret your decisions! Take note and learn!"
An eternal Devils Advocate playing like a record in my mind makes that rather difficult. Any decision I don't take from my own list of options just becomes a "what if" echo of sorts. When the decision turns out poorly, it's even more so that case.
I still stand by my decisions made, even when they're poor ones, but I always recognize that I did not take the best course of action. I recognize said thinking of "what if" is a waste, but that doesn't stop it either. I hold myself at an unrealistic standard from the assumption that life is predictable enough that a better choice should have been obvious.
"Choice" is both freedom and a burden.
Perfection eliminates a lot of my boredom too! I understand that! But i get tired of it at one point and just drop it. If i do not get tired, then i will continue, why not ?
You have to think what if before the decision is made! I often see what could happen when i take a decision, i am very rarely surprised! I do not always get the desired best result, but i usually get a result i had foreseen that might come true!
That standard you hold is not unrealistic at all, but that doesn't mean you should care much when you do not take the best choice. Otherwise it would be too easy!
Choice is neither freedom or a burden, its 'fun' :)
There is not freedom in limited number of choices and there is only the burden you put on it :)