In this case sitting and worrying about it is not going to make any difference in the outcome. So, don't worry about it. Dean Ornish talked about how our culture makes us to dwell on the high stress activities. Now, if this happened in the USA or many other parts of the world, the drivers will be getting out of the car and showering each other with abuses, threats and remind the other person how stupid he was to cause the accident. Allah, wanted us to meet.
Stress IS a choice.
When that happens, I just try to go on about the business of taking care of what I CAN do, today, right now. If I have to stand in line, I can choose to watch the folks around me, look at the decorations, balance my checkbook, read a little of the paperback in my pocket, talk to a little child or old person-or I can silently bitch about standing in line until my blood pressure goes up and my feet hurt. Although it is a waste of energy to worry about future events over which we have no control, it is human nature to do so. Plan and prioritize as best you can, and then be easy on yourself'. The future hasn't happened, and the past is not going to happen again.