do you ever get the feeling...that you have settled?

By that I mean that when aparent opportunities knocked, you checked them out but backslided and went back to your familiar grounds thinking and measuring that it was your best choice, but sometimes in your blue days, you hear a whispering voice telling you that you missed a great opportunity?

Does that ever happen to you?
Have your decisions been strong conviction?
Are your convictions wrong?
Are you sure or unsure?