Character Trait

I have a character trait which I am sure has pros and cons which involves thinking over a problem, a big problem and looking at every aspect and angle.  My husband has defined this has obsessing.  Now stop.  What is the difference between a detective going over each angle to solve a crime? Now, stop, are you going to say I’m not a detective, so I cannot think like one? I think having awareness over ones thoughts gives me the control to know when obsessing is bad and when it is good.  But I have become aware that it is often hard to STOP when it is bad or pointless.  Harnessing when it is good is what I need to go after.  I know the ideas in this world that have been known for greatness involved one woman or man obsessing.  I cannot give up this trait for that reason.  I am afraid that it might kill the writer.