Time can be one of the worse things to torture ourselves with.
Our anticipation of events to come, the fear of the unknown - these are things which can drive us to make rash decisions. Things that we would not normally do. We lose sleep, needling ourselves with 'what if' and 'should have' and 'could have'.
This doesn't make any sense, but we do it. It does us no good, but we do it nonetheless.
If you find yourself running over the same old ground, take charge. Take action. Do not be victimized by your fears. Charge forth.
Yes, it is much easier said than done. I wrestle with that concept myself, but I'm trying.
And trying makes all the difference.