The reason that you get anxious about pending situations is that you will naturally predict worse case scenario, and as you know humans cannot predict the future so these thoughts will probably be inaccurate. Anxiety symptoms are the same as for fear, however, fear is experienced when something is ACTUALLY happening. Anxiety occurs when thinking about fearful situations. Obviously, there is uncertainty as the event is in the future, but try and recognise that our default setting will be to expect the worse, however, this may not be what ACTUALLY happens. Good luck